db: split example logs into one per scribble file to make drdr happy
This commit is contained in:
Ryan Culpepper
parent
81b022a3b8
commit
01e19983da
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@ -21,17 +21,35 @@
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;; ----
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#|
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The log-based-eval should be run in an environment that defines
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the DSN 'db-scribble-env as a PostgreSQL data source.
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Whenever examples are changed, added, removed, or reordered, the
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example log files must be regenerated. To do so, set log-mode below to
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'record and run setup. Regenerating the logs require an environment
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that defines the DSN 'db-scribble-env as a PostgreSQL data source.
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Set log-mode back to 'replay before checking in the changes.
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Use one evaluator (and log file) per scribble file, so that when DrDr
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runs scribble files individually, they still work.
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|#
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(define-runtime-path example-log "example-log.rktd")
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(define the-eval (make-log-based-eval example-log 'replay))
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(define log-mode 'replay)
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(the-eval '(require racket/class
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db
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db/util/postgresql
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db/util/datetime))
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(define (make-pg-eval log-file init?)
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(let ([ev (make-log-based-eval log-file log-mode)])
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(ev '(require racket/class
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db
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db/util/postgresql
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db/util/datetime))
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(when init?
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(ev '(begin
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;; Must be kept in sync with beginning of using-db.scrbl
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(define pgc (dsn-connect 'db-scribble-env))
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(query-exec pgc "create temporary table the_numbers (n integer, d varchar(20))")
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(query-exec pgc "insert into the_numbers values (0, 'nothing')")
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(query-exec pgc "insert into the_numbers values (1, 'the loneliest number')")
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(query-exec pgc "insert into the_numbers values (2, 'company')")
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(query-exec pgc "insert into the_numbers values (3, 'a crowd')"))))
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ev))
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#|
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The fake eval is for eg connection examples
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@ -3,10 +3,15 @@
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scribble/eval
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scribble/struct
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racket/sandbox
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racket/runtime-path
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"config.rkt"
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(for-label db
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openssl))
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@(define-runtime-path log-file "log-for-connect.rktd")
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@(define the-eval (make-pg-eval log-file #t))
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@title[#:tag "connect"]{Connections}
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This section describes functions for creating connections as well as
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@ -749,3 +754,6 @@ Provides only @racket[odbc-connect], @racket[odbc-driver-connect],
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@racketmodname[db], this module immediately attempts to
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load the ODBC native library when required, and it raises an exception
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if it cannot be found.
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@(close-eval the-eval)
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@ -1,6 +1,7 @@
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#lang scribble/doc
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@(require scribble/manual
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scribble/struct
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scribble/eval
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"config.rkt")
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@title{DB: Database Connectivity}
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@ -56,3 +57,5 @@ code from Jay McCarthy's @tt{sqlite} package.
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@include-section["sql-types.scrbl"]
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@include-section["util.scrbl"]
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@include-section["notes.scrbl"]
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@(close-eval fake-eval)
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@ -1,664 +0,0 @@
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;; This file was created by make-log-based-eval
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((require racket/class db db/util/postgresql db/util/datetime)
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((3) 0 () 0 () () (c values c (void)))
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#""
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#"")
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((require db) ((3) 0 () 0 () () (c values c (void))) #"" #"")
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((define pgc (dsn-connect 'db-scribble-env))
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((3) 0 () 0 () () (c values c (void)))
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#""
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#"")
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((query-exec
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pgc
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"create temporary table the_numbers (n integer, d varchar(20))")
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((3) 0 () 0 () () (c values c (void)))
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#""
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#"")
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((query-exec pgc "insert into the_numbers values (0, 'nothing')")
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((3) 0 () 0 () () (c values c (void)))
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#""
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#"")
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((query-exec pgc "insert into the_numbers values (1, 'the loneliest number')")
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((3) 0 () 0 () () (c values c (void)))
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#""
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#"")
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((query-exec pgc "insert into the_numbers values (2, 'company')")
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((3) 0 () 0 () () (c values c (void)))
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#""
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#"")
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((query pgc "insert into the_numbers values (3, 'a crowd')")
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((3)
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1
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(((lib "db/private/generic/interfaces.rkt")
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.
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deserialize-info:simple-result-v0))
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0
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()
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()
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(c values c (0 (c (c command u . "INSERT 0 1")))))
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#""
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#"")
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((query pgc "select n, d from the_numbers where n % 2 = 0")
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((3)
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1
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(((lib "db/private/generic/interfaces.rkt")
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.
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deserialize-info:rows-result-v0))
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0
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()
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()
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(c
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values
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c
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(0
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(c
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(c
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(c name u . "n")
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c
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(c typeid . 23)
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c
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(c type-size . 4)
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c
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(c type-mod . -1))
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c
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(c
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(c name u . "d")
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c
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(c typeid . 1043)
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c
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(c type-size . -1)
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c
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(c type-mod . 24)))
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(c (v! 0 (u . "nothing")) c (v! 2 (u . "company"))))))
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#""
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#"")
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((query-rows pgc "select n, d from the_numbers where n % 2 = 0")
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((3)
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0
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()
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0
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()
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()
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(c values c (c (v! 0 (u . "nothing")) c (v! 2 (u . "company")))))
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#""
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#"")
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((query-row pgc "select * from the_numbers where n = 0")
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((3) 0 () 0 () () (c values c (v! 0 (u . "nothing"))))
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#""
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#"")
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((query-list pgc "select d from the_numbers order by n")
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((3)
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0
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()
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0
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()
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()
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(c
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values
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c
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(c
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(u . "nothing")
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c
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(u . "the loneliest number")
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c
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(u . "company")
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c
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(u . "a crowd"))))
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#""
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#"")
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((query-value pgc "select count(*) from the_numbers")
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((3) 0 () 0 () () (c values c 4))
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#""
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#"")
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((query-value pgc "select d from the_numbers where n = 5")
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((3)
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0
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()
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0
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()
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()
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(c
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exn
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c
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"query-value: query returned wrong number of rows\n statement: \"select d from the_numbers where n = 5\"\n expected: 1\n got: 0"))
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#""
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#"")
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((query-maybe-value pgc "select d from the_numbers where n = 5")
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((3) 0 () 0 () () (c values c #f))
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#""
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#"")
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((for
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(((n d) (in-query pgc "select * from the_numbers where n < 4")))
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(printf "~a: ~a\n" n d))
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((3) 0 () 0 () () (c values c (void)))
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#"0: nothing\n1: the loneliest number\n2: company\n3: a crowd\n"
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#"")
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((for/fold
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((sum 0))
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((n (in-query pgc "select n from the_numbers")))
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(+ sum n))
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((3) 0 () 0 () () (c values c 6))
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#""
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#"")
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((begin
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(with-handlers
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((exn:fail? (lambda (e) (printf "~a~n" (exn-message e)))))
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(query-value pgc "select NoSuchField from NoSuchTable"))
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(query-value pgc "select 'okay to proceed!'"))
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((3) 0 () 0 () () (c values c (u . "okay to proceed!")))
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#"query-value: relation \"nosuchtable\" does not exist\n SQLSTATE: 42P01\n"
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#"")
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((query-value pgc "select d from the_numbers where n = $1" 2)
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((3) 0 () 0 () () (c values c (u . "company")))
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#""
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#"")
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((query-list pgc "select n from the_numbers where n > $1 and n < $2" 0 3)
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((3) 0 () 0 () () (c values c (c 1 c 2)))
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#""
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#"")
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((define get-less-than-pst
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(prepare pgc "select n from the_numbers where n < $1"))
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((3) 0 () 0 () () (c values c (void)))
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#""
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#"")
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((query-list pgc get-less-than-pst 1)
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((3) 0 () 0 () () (c values c (c 0)))
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#""
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#"")
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((query-list pgc (bind-prepared-statement get-less-than-pst '(2)))
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((3) 0 () 0 () () (c values c (c 0 c 1)))
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#""
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#"")
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((void) ((3) 0 () 0 () () (c values c (void))) #"" #"")
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((define pool
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(connection-pool
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(lambda ()
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(displayln "connecting!")
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(sqlite3-connect #:database 'memory))))
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((3) 0 () 0 () () (c values c (void)))
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#""
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#"")
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((define c1 (connection-pool-lease pool))
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((3) 0 () 0 () () (c values c (void)))
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#"connecting!\n"
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#"")
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((define c2 (connection-pool-lease pool))
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((3) 0 () 0 () () (c values c (void)))
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#"connecting!\n"
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#"")
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((disconnect c1) ((3) 0 () 0 () () (c values c (void))) #"" #"")
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((define c3 (connection-pool-lease pool))
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((3) 0 () 0 () () (c values c (void)))
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#""
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#"")
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((define c
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(virtual-connection
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(lambda () (printf "connecting!\n") (dsn-connect 'db-scribble-env))))
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((3) 0 () 0 () () (c values c (void)))
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#""
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#"")
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((connected? c) ((3) 0 () 0 () () (c values c #f)) #"" #"")
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((query-value c "select 1")
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((3) 0 () 0 () () (c values c 1))
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#"connecting!\n"
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#"")
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((connected? c) ((3) 0 () 0 () () (c values c #t)) #"" #"")
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((void (thread (lambda () (displayln (query-value c "select 2")))))
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((3) 0 () 0 () () (c values c (void)))
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#"connecting!\n2\n"
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#"")
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((disconnect c) ((3) 0 () 0 () () (c values c (void))) #"" #"")
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((connected? c) ((3) 0 () 0 () () (c values c #f)) #"" #"")
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((query-value c "select 3")
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((3) 0 () 0 () () (c values c 3))
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#"connecting!\n"
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#"")
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((prepare c "select 2 + $1")
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((3)
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0
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()
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0
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()
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()
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(c exn c "prepare: cannot prepare statement with virtual connection"))
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#""
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#"")
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((query-value c "select 2 + $1" 2) ((3) 0 () 0 () () (c values c 4)) #"" #"")
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((define pst (virtual-statement "select 2 + $1"))
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((3) 0 () 0 () () (c values c (void)))
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#""
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#"")
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((query-value c pst 3) ((3) 0 () 0 () () (c values c 5)) #"" #"")
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((begin (set! c #f) (set! pst #f))
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((3) 0 () 0 () () (c values c (void)))
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#""
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#"")
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((define c pgc) ((3) 0 () 0 () () (c values c (void))) #"" #"")
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((query-exec pgc "insert into the_numbers values (42, 'the answer')")
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((3) 0 () 0 () () (c values c (void)))
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#""
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#"")
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((query-exec pgc "delete from the_numbers where n = $1" 42)
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((3) 0 () 0 () () (c values c (void)))
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#""
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#"")
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((query-rows pgc "select * from the_numbers where n = $1" 2)
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((3) 0 () 0 () () (c values c (c (v! 2 (u . "company")))))
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#""
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#"")
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((query-rows c "select 17")
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((3) 0 () 0 () () (c values c (c (v! 17))))
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#""
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#"")
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((query-list c "select n from the_numbers where n < 2")
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((3) 0 () 0 () () (c values c (c 0 c 1)))
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#""
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#"")
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((query-list c "select 'hello'")
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((3) 0 () 0 () () (c values c (c (u . "hello"))))
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#""
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#"")
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((query-row pgc "select * from the_numbers where n = $1" 2)
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((3) 0 () 0 () () (c values c (v! 2 (u . "company"))))
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#""
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#"")
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((query-row pgc "select min(n), max(n) from the_numbers")
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((3) 0 () 0 () () (c values c (v! 0 3)))
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#""
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#"")
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((query-maybe-row pgc "select * from the_numbers where n = $1" 100)
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((3) 0 () 0 () () (c values c #f))
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#""
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#"")
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((query-maybe-row c "select 17")
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((3) 0 () 0 () () (c values c (v! 17)))
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#""
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#"")
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((query-value pgc "select timestamp 'epoch'")
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((3)
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1
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(((lib "db/private/generic/sql-data.rkt")
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.
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deserialize-info:sql-timestamp-v0))
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0
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()
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()
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(c values c (0 1970 1 1 0 0 0 0 #f)))
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#""
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#"")
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((query-value pgc "select d from the_numbers where n = $1" 3)
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((3) 0 () 0 () () (c values c (u . "a crowd")))
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#""
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#"")
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((query-maybe-value pgc "select d from the_numbers where n = $1" 100)
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((3) 0 () 0 () () (c values c #f))
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#""
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#"")
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((query-maybe-value c "select count(*) from the_numbers")
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((3) 0 () 0 () () (c values c 4))
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#""
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#"")
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((for/list ((n (in-query pgc "select n from the_numbers where n < 2"))) n)
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((3) 0 () 0 () () (c values c (c 0 c 1)))
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#""
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#"")
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((call-with-transaction
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pgc
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(lambda ()
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(for
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(((n d)
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(in-query pgc "select * from the_numbers where n < $1" 4 #:fetch 1)))
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(printf "~a: ~a\n" n d))))
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((3) 0 () 0 () () (c values c (void)))
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#"0: nothing\n1: the loneliest number\n2: company\n3: a crowd\n"
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#"")
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((for ((n (in-query pgc "select * from the_numbers"))) (displayln n))
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((3)
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0
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()
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0
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()
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()
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(c
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exn
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c
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"in-query: query returned wrong number of columns\n statement: \"select * from the_numbers\"\n expected: 1\n got: 2"))
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#""
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#"")
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((define vehicles-result
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(rows-result
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'(((name . "type")) ((name . "maker")) ((name . "model")))
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`(#("car" "honda" "civic")
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#("car" "ford" "focus")
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#("car" "ford" "pinto")
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#("bike" "giant" "boulder")
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#("bike" "schwinn" ,sql-null))))
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((3) 0 () 0 () () (c values c (void)))
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#""
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#"")
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((group-rows vehicles-result #:group '(#("type")))
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((3)
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2
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(((lib "db/private/generic/interfaces.rkt")
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.
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deserialize-info:rows-result-v0)
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((lib "db/private/generic/sql-data.rkt") . deserialize-info:sql-null-v0))
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1
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("ford")
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()
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(c
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values
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c
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(0
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(c
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(c (c name . "type"))
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c
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(c
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(c name . "grouped")
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c
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(c grouped c (c (c name . "maker")) c (c (c name . "model")))))
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(c
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(v!
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"car"
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(c (v! "honda" "civic") c (v! (? . 0) "focus") c (v! (? . 0) "pinto")))
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c
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(v! "bike" (c (v! "giant" "boulder") c (v! "schwinn" (1))))))))
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#""
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#"")
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((group-rows
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vehicles-result
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#:group
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'(#("type") #("maker"))
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#:group-mode
|
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'(list))
|
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((3)
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1
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(((lib "db/private/generic/interfaces.rkt")
|
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.
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||||
deserialize-info:rows-result-v0))
|
||||
1
|
||||
((c name . "grouped"))
|
||||
()
|
||||
(c
|
||||
values
|
||||
c
|
||||
(0
|
||||
(c
|
||||
(c (c name . "type"))
|
||||
c
|
||||
(c
|
||||
(? . 0)
|
||||
c
|
||||
(c
|
||||
grouped
|
||||
c
|
||||
(c (c name . "maker"))
|
||||
c
|
||||
(c (? . 0) c (c grouped c (c (c name . "model")))))))
|
||||
(c
|
||||
(v!
|
||||
"car"
|
||||
(c (v! "honda" (c "civic")) c (v! "ford" (c "focus" c "pinto"))))
|
||||
c
|
||||
(v! "bike" (c (v! "giant" (c "boulder")) c (v! "schwinn" ())))))))
|
||||
#""
|
||||
#"")
|
||||
((rows->dict vehicles-result #:key "model" #:value '#("type" "maker"))
|
||||
((3)
|
||||
1
|
||||
(((lib "db/private/generic/sql-data.rkt") . deserialize-info:sql-null-v0))
|
||||
3
|
||||
("car" "ford" "bike")
|
||||
()
|
||||
(c
|
||||
values
|
||||
c
|
||||
(h
|
||||
-
|
||||
(equal)
|
||||
((0) v! (? . 2) "schwinn")
|
||||
("civic" v! (? . 0) "honda")
|
||||
("pinto" v! (? . 0) (? . 1))
|
||||
("focus" v! (? . 0) (? . 1))
|
||||
("boulder" v! (? . 2) "giant"))))
|
||||
#""
|
||||
#"")
|
||||
((rows->dict
|
||||
vehicles-result
|
||||
#:key
|
||||
"maker"
|
||||
#:value
|
||||
"model"
|
||||
#:value-mode
|
||||
'(list))
|
||||
((3)
|
||||
0
|
||||
()
|
||||
0
|
||||
()
|
||||
()
|
||||
(c
|
||||
values
|
||||
c
|
||||
(h
|
||||
-
|
||||
(equal)
|
||||
("ford" c "focus" c "pinto")
|
||||
("honda" c "civic")
|
||||
("giant" c "boulder")
|
||||
("schwinn"))))
|
||||
#""
|
||||
#"")
|
||||
((let* ((get-name-pst (prepare pgc "select d from the_numbers where n = $1"))
|
||||
(get-name2 (bind-prepared-statement get-name-pst (list 2)))
|
||||
(get-name3 (bind-prepared-statement get-name-pst (list 3))))
|
||||
(list (query-value pgc get-name2) (query-value pgc get-name3)))
|
||||
((3) 0 () 0 () () (c values c (c (u . "company") c (u . "a crowd"))))
|
||||
#""
|
||||
#"")
|
||||
((define pst
|
||||
(virtual-statement
|
||||
(lambda (dbsys)
|
||||
(case (dbsystem-name dbsys)
|
||||
((postgresql) "select n from the_numbers where n < $1")
|
||||
((sqlite3) "select n from the_numbers where n < ?")
|
||||
(else (error "unknown system"))))))
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((query-list pgc pst 3) ((3) 0 () 0 () () (c values c (c 0 c 1 c 2))) #"" #"")
|
||||
((query-list pgc pst 3) ((3) 0 () 0 () () (c values c (c 0 c 1 c 2))) #"" #"")
|
||||
((with-handlers
|
||||
((exn:fail:sql? exn:fail:sql-info))
|
||||
(query pgc "select * from nosuchtable"))
|
||||
((3)
|
||||
0
|
||||
()
|
||||
0
|
||||
()
|
||||
()
|
||||
(c
|
||||
values
|
||||
c
|
||||
(c
|
||||
(c severity u . "ERROR")
|
||||
c
|
||||
(c code u . "42P01")
|
||||
c
|
||||
(c message u . "relation \"nosuchtable\" does not exist")
|
||||
c
|
||||
(c position u . "15")
|
||||
c
|
||||
(c file u . "parse_relation.c")
|
||||
c
|
||||
(c line u . "857")
|
||||
c
|
||||
(c routine u . "parserOpenTable"))))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select count(*) from the_numbers")
|
||||
((3) 0 () 0 () () (c values c 4))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select false") ((3) 0 () 0 () () (c values c #f)) #"" #"")
|
||||
((query-value pgc "select 1 + $1" 2) ((3) 0 () 0 () () (c values c 3)) #"" #"")
|
||||
((query-value pgc "select inet '127.0.0.1'")
|
||||
((3)
|
||||
0
|
||||
()
|
||||
0
|
||||
()
|
||||
()
|
||||
(c exn c "query-value: unsupported type\n type: inet\n typeid: 869"))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select cast(inet '127.0.0.1' as varchar)")
|
||||
((3) 0 () 0 () () (c values c (u . "127.0.0.1/32")))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select real '+Infinity'")
|
||||
((3) 0 () 0 () () (c values c +inf.0))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select numeric '12345678901234567890'")
|
||||
((3) 0 () 0 () () (c values c 12345678901234567890))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select 1 in (1, 2, 3)")
|
||||
((3) 0 () 0 () () (c values c #t))
|
||||
#""
|
||||
#"")
|
||||
((query-value
|
||||
pgc
|
||||
"select 1 = any ($1::integer[])"
|
||||
(list->pg-array (list 1 2 3)))
|
||||
((3) 0 () 0 () () (c values c #t))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select 1 = any ($1)" (list 1 2 3))
|
||||
((3) 0 () 0 () () (c values c #t))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select $1::integer = any ($2)" 1 (list 1 2 3))
|
||||
((3) 0 () 0 () () (c values c #t))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select $1 = any ($2)" 1 (list 1 2 3))
|
||||
((3)
|
||||
0
|
||||
()
|
||||
0
|
||||
()
|
||||
()
|
||||
(c
|
||||
exn
|
||||
c
|
||||
"query-value: cannot convert given value to SQL type\n given: 1\n type: string\n dialect: PostgreSQL"))
|
||||
#""
|
||||
#"")
|
||||
((query-value c "select NULL")
|
||||
((3)
|
||||
1
|
||||
(((lib "db/private/generic/sql-data.rkt") . deserialize-info:sql-null-v0))
|
||||
0
|
||||
()
|
||||
()
|
||||
(c values c (0)))
|
||||
#""
|
||||
#"")
|
||||
((sql-null->false "apple") ((3) 0 () 0 () () (c values c "apple")) #"" #"")
|
||||
((sql-null->false sql-null) ((3) 0 () 0 () () (c values c #f)) #"" #"")
|
||||
((sql-null->false #f) ((3) 0 () 0 () () (c values c #f)) #"" #"")
|
||||
((false->sql-null "apple") ((3) 0 () 0 () () (c values c "apple")) #"" #"")
|
||||
((false->sql-null #f)
|
||||
((3)
|
||||
1
|
||||
(((lib "db/private/generic/sql-data.rkt") . deserialize-info:sql-null-v0))
|
||||
0
|
||||
()
|
||||
()
|
||||
(c values c (0)))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select date '25-dec-1980'")
|
||||
((3)
|
||||
1
|
||||
(((lib "db/private/generic/sql-data.rkt") . deserialize-info:sql-date-v0))
|
||||
0
|
||||
()
|
||||
()
|
||||
(c values c (0 1980 12 25)))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select time '7:30'")
|
||||
((3)
|
||||
1
|
||||
(((lib "db/private/generic/sql-data.rkt") . deserialize-info:sql-time-v0))
|
||||
0
|
||||
()
|
||||
()
|
||||
(c values c (0 7 30 0 0 #f)))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select timestamp 'epoch'")
|
||||
((3)
|
||||
1
|
||||
(((lib "db/private/generic/sql-data.rkt")
|
||||
.
|
||||
deserialize-info:sql-timestamp-v0))
|
||||
0
|
||||
()
|
||||
()
|
||||
(c values c (0 1970 1 1 0 0 0 0 #f)))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select timestamp with time zone 'epoch'")
|
||||
((3)
|
||||
1
|
||||
(((lib "db/private/generic/sql-data.rkt")
|
||||
.
|
||||
deserialize-info:sql-timestamp-v0))
|
||||
0
|
||||
()
|
||||
()
|
||||
(c values c (0 1969 12 31 19 0 0 0 -18000)))
|
||||
#""
|
||||
#"")
|
||||
((sql-bits->list (string->sql-bits "1011"))
|
||||
((3) 0 () 0 () () (c values c (c #t c #f c #t c #t)))
|
||||
#""
|
||||
#"")
|
||||
((sql-bits->string (query-value pgc "select B'010110111'"))
|
||||
((3) 0 () 0 () () (c values c (u . "010110111")))
|
||||
#""
|
||||
#"")
|
||||
((sql-datetime->srfi-date (query-value pgc "select time '7:30'"))
|
||||
((3)
|
||||
1
|
||||
(((lib "srfi/19/time.rkt") . deserialize-info:tm:date-v0))
|
||||
0
|
||||
()
|
||||
()
|
||||
(c values c (0 0 0 30 7 0 0 0 0)))
|
||||
#""
|
||||
#"")
|
||||
((sql-datetime->srfi-date (query-value pgc "select date '25-dec-1980'"))
|
||||
((3)
|
||||
1
|
||||
(((lib "srfi/19/time.rkt") . deserialize-info:tm:date-v0))
|
||||
0
|
||||
()
|
||||
()
|
||||
(c values c (0 0 0 0 0 25 12 1980 0)))
|
||||
#""
|
||||
#"")
|
||||
((sql-datetime->srfi-date (query-value pgc "select timestamp 'epoch'"))
|
||||
((3)
|
||||
1
|
||||
(((lib "srfi/19/time.rkt") . deserialize-info:tm:date-v0))
|
||||
0
|
||||
()
|
||||
()
|
||||
(c values c (0 0 0 0 0 1 1 1970 0)))
|
||||
#""
|
||||
#"")
|
||||
82
collects/db/scribblings/log-for-connect.rktd
Normal file
82
collects/db/scribblings/log-for-connect.rktd
Normal file
|
|
@ -0,0 +1,82 @@
|
|||
;; This file was created by make-log-based-eval
|
||||
((require racket/class db db/util/postgresql db/util/datetime)
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((begin
|
||||
(define pgc (dsn-connect 'db-scribble-env))
|
||||
(query-exec
|
||||
pgc
|
||||
"create temporary table the_numbers (n integer, d varchar(20))")
|
||||
(query-exec pgc "insert into the_numbers values (0, 'nothing')")
|
||||
(query-exec
|
||||
pgc
|
||||
"insert into the_numbers values (1, 'the loneliest number')")
|
||||
(query-exec pgc "insert into the_numbers values (2, 'company')")
|
||||
(query-exec pgc "insert into the_numbers values (3, 'a crowd')"))
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((define pool
|
||||
(connection-pool
|
||||
(lambda ()
|
||||
(displayln "connecting!")
|
||||
(sqlite3-connect #:database 'memory))))
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((define c1 (connection-pool-lease pool))
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#"connecting!\n"
|
||||
#"")
|
||||
((define c2 (connection-pool-lease pool))
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#"connecting!\n"
|
||||
#"")
|
||||
((disconnect c1) ((3) 0 () 0 () () (c values c (void))) #"" #"")
|
||||
((define c3 (connection-pool-lease pool))
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((define c
|
||||
(virtual-connection
|
||||
(lambda () (printf "connecting!\n") (dsn-connect 'db-scribble-env))))
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((connected? c) ((3) 0 () 0 () () (c values c #f)) #"" #"")
|
||||
((query-value c "select 1")
|
||||
((3) 0 () 0 () () (c values c 1))
|
||||
#"connecting!\n"
|
||||
#"")
|
||||
((connected? c) ((3) 0 () 0 () () (c values c #t)) #"" #"")
|
||||
((void (thread (lambda () (displayln (query-value c "select 2")))))
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#"connecting!\n2\n"
|
||||
#"")
|
||||
((disconnect c) ((3) 0 () 0 () () (c values c (void))) #"" #"")
|
||||
((connected? c) ((3) 0 () 0 () () (c values c #f)) #"" #"")
|
||||
((query-value c "select 3")
|
||||
((3) 0 () 0 () () (c values c 3))
|
||||
#"connecting!\n"
|
||||
#"")
|
||||
((prepare c "select 2 + $1")
|
||||
((3)
|
||||
0
|
||||
()
|
||||
0
|
||||
()
|
||||
()
|
||||
(c exn c "prepare: cannot prepare statement with virtual connection"))
|
||||
#""
|
||||
#"")
|
||||
((query-value c "select 2 + $1" 2) ((3) 0 () 0 () () (c values c 4)) #"" #"")
|
||||
((define pst (virtual-statement "select 2 + $1"))
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((query-value c pst 3) ((3) 0 () 0 () () (c values c 5)) #"" #"")
|
||||
((begin (set! c #f) (set! pst #f))
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
282
collects/db/scribblings/log-for-query.rktd
Normal file
282
collects/db/scribblings/log-for-query.rktd
Normal file
|
|
@ -0,0 +1,282 @@
|
|||
;; This file was created by make-log-based-eval
|
||||
((require racket/class db db/util/postgresql db/util/datetime)
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((begin
|
||||
(define pgc (dsn-connect 'db-scribble-env))
|
||||
(query-exec
|
||||
pgc
|
||||
"create temporary table the_numbers (n integer, d varchar(20))")
|
||||
(query-exec pgc "insert into the_numbers values (0, 'nothing')")
|
||||
(query-exec
|
||||
pgc
|
||||
"insert into the_numbers values (1, 'the loneliest number')")
|
||||
(query-exec pgc "insert into the_numbers values (2, 'company')")
|
||||
(query-exec pgc "insert into the_numbers values (3, 'a crowd')"))
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((define c pgc) ((3) 0 () 0 () () (c values c (void))) #"" #"")
|
||||
((query-exec pgc "insert into the_numbers values (42, 'the answer')")
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((query-exec pgc "delete from the_numbers where n = $1" 42)
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((query-rows pgc "select * from the_numbers where n = $1" 2)
|
||||
((3) 0 () 0 () () (c values c (c (v! 2 (u . "company")))))
|
||||
#""
|
||||
#"")
|
||||
((query-rows c "select 17")
|
||||
((3) 0 () 0 () () (c values c (c (v! 17))))
|
||||
#""
|
||||
#"")
|
||||
((query-list c "select n from the_numbers where n < 2")
|
||||
((3) 0 () 0 () () (c values c (c 0 c 1)))
|
||||
#""
|
||||
#"")
|
||||
((query-list c "select 'hello'")
|
||||
((3) 0 () 0 () () (c values c (c (u . "hello"))))
|
||||
#""
|
||||
#"")
|
||||
((query-row pgc "select * from the_numbers where n = $1" 2)
|
||||
((3) 0 () 0 () () (c values c (v! 2 (u . "company"))))
|
||||
#""
|
||||
#"")
|
||||
((query-row pgc "select min(n), max(n) from the_numbers")
|
||||
((3) 0 () 0 () () (c values c (v! 0 3)))
|
||||
#""
|
||||
#"")
|
||||
((query-maybe-row pgc "select * from the_numbers where n = $1" 100)
|
||||
((3) 0 () 0 () () (c values c #f))
|
||||
#""
|
||||
#"")
|
||||
((query-maybe-row c "select 17")
|
||||
((3) 0 () 0 () () (c values c (v! 17)))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select timestamp 'epoch'")
|
||||
((3)
|
||||
1
|
||||
(((lib "db/private/generic/sql-data.rkt")
|
||||
.
|
||||
deserialize-info:sql-timestamp-v0))
|
||||
0
|
||||
()
|
||||
()
|
||||
(c values c (0 1970 1 1 0 0 0 0 #f)))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select d from the_numbers where n = $1" 3)
|
||||
((3) 0 () 0 () () (c values c (u . "a crowd")))
|
||||
#""
|
||||
#"")
|
||||
((query-maybe-value pgc "select d from the_numbers where n = $1" 100)
|
||||
((3) 0 () 0 () () (c values c #f))
|
||||
#""
|
||||
#"")
|
||||
((query-maybe-value c "select count(*) from the_numbers")
|
||||
((3) 0 () 0 () () (c values c 4))
|
||||
#""
|
||||
#"")
|
||||
((for/list ((n (in-query pgc "select n from the_numbers where n < 2"))) n)
|
||||
((3) 0 () 0 () () (c values c (c 0 c 1)))
|
||||
#""
|
||||
#"")
|
||||
((call-with-transaction
|
||||
pgc
|
||||
(lambda ()
|
||||
(for
|
||||
(((n d)
|
||||
(in-query pgc "select * from the_numbers where n < $1" 4 #:fetch 1)))
|
||||
(printf "~a: ~a\n" n d))))
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#"0: nothing\n1: the loneliest number\n2: company\n3: a crowd\n"
|
||||
#"")
|
||||
((for ((n (in-query pgc "select * from the_numbers"))) (displayln n))
|
||||
((3)
|
||||
0
|
||||
()
|
||||
0
|
||||
()
|
||||
()
|
||||
(c
|
||||
exn
|
||||
c
|
||||
"in-query: query returned wrong number of columns\n statement: \"select * from the_numbers\"\n expected: 1\n got: 2"))
|
||||
#""
|
||||
#"")
|
||||
((define vehicles-result
|
||||
(rows-result
|
||||
'(((name . "type")) ((name . "maker")) ((name . "model")))
|
||||
`(#("car" "honda" "civic")
|
||||
#("car" "ford" "focus")
|
||||
#("car" "ford" "pinto")
|
||||
#("bike" "giant" "boulder")
|
||||
#("bike" "schwinn" ,sql-null))))
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((group-rows vehicles-result #:group '(#("type")))
|
||||
((3)
|
||||
2
|
||||
(((lib "db/private/generic/interfaces.rkt")
|
||||
.
|
||||
deserialize-info:rows-result-v0)
|
||||
((lib "db/private/generic/sql-data.rkt") . deserialize-info:sql-null-v0))
|
||||
1
|
||||
("ford")
|
||||
()
|
||||
(c
|
||||
values
|
||||
c
|
||||
(0
|
||||
(c
|
||||
(c (c name . "type"))
|
||||
c
|
||||
(c
|
||||
(c name . "grouped")
|
||||
c
|
||||
(c grouped c (c (c name . "maker")) c (c (c name . "model")))))
|
||||
(c
|
||||
(v!
|
||||
"car"
|
||||
(c (v! "honda" "civic") c (v! (? . 0) "focus") c (v! (? . 0) "pinto")))
|
||||
c
|
||||
(v! "bike" (c (v! "giant" "boulder") c (v! "schwinn" (1))))))))
|
||||
#""
|
||||
#"")
|
||||
((group-rows
|
||||
vehicles-result
|
||||
#:group
|
||||
'(#("type") #("maker"))
|
||||
#:group-mode
|
||||
'(list))
|
||||
((3)
|
||||
1
|
||||
(((lib "db/private/generic/interfaces.rkt")
|
||||
.
|
||||
deserialize-info:rows-result-v0))
|
||||
1
|
||||
((c name . "grouped"))
|
||||
()
|
||||
(c
|
||||
values
|
||||
c
|
||||
(0
|
||||
(c
|
||||
(c (c name . "type"))
|
||||
c
|
||||
(c
|
||||
(? . 0)
|
||||
c
|
||||
(c
|
||||
grouped
|
||||
c
|
||||
(c (c name . "maker"))
|
||||
c
|
||||
(c (? . 0) c (c grouped c (c (c name . "model")))))))
|
||||
(c
|
||||
(v!
|
||||
"car"
|
||||
(c (v! "honda" (c "civic")) c (v! "ford" (c "focus" c "pinto"))))
|
||||
c
|
||||
(v! "bike" (c (v! "giant" (c "boulder")) c (v! "schwinn" ())))))))
|
||||
#""
|
||||
#"")
|
||||
((rows->dict vehicles-result #:key "model" #:value '#("type" "maker"))
|
||||
((3)
|
||||
1
|
||||
(((lib "db/private/generic/sql-data.rkt") . deserialize-info:sql-null-v0))
|
||||
3
|
||||
("car" "ford" "bike")
|
||||
()
|
||||
(c
|
||||
values
|
||||
c
|
||||
(h
|
||||
-
|
||||
(equal)
|
||||
((0) v! (? . 2) "schwinn")
|
||||
("civic" v! (? . 0) "honda")
|
||||
("pinto" v! (? . 0) (? . 1))
|
||||
("focus" v! (? . 0) (? . 1))
|
||||
("boulder" v! (? . 2) "giant"))))
|
||||
#""
|
||||
#"")
|
||||
((rows->dict
|
||||
vehicles-result
|
||||
#:key
|
||||
"maker"
|
||||
#:value
|
||||
"model"
|
||||
#:value-mode
|
||||
'(list))
|
||||
((3)
|
||||
0
|
||||
()
|
||||
0
|
||||
()
|
||||
()
|
||||
(c
|
||||
values
|
||||
c
|
||||
(h
|
||||
-
|
||||
(equal)
|
||||
("ford" c "focus" c "pinto")
|
||||
("honda" c "civic")
|
||||
("giant" c "boulder")
|
||||
("schwinn"))))
|
||||
#""
|
||||
#"")
|
||||
((let* ((get-name-pst (prepare pgc "select d from the_numbers where n = $1"))
|
||||
(get-name2 (bind-prepared-statement get-name-pst (list 2)))
|
||||
(get-name3 (bind-prepared-statement get-name-pst (list 3))))
|
||||
(list (query-value pgc get-name2) (query-value pgc get-name3)))
|
||||
((3) 0 () 0 () () (c values c (c (u . "company") c (u . "a crowd"))))
|
||||
#""
|
||||
#"")
|
||||
((define pst
|
||||
(virtual-statement
|
||||
(lambda (dbsys)
|
||||
(case (dbsystem-name dbsys)
|
||||
((postgresql) "select n from the_numbers where n < $1")
|
||||
((sqlite3) "select n from the_numbers where n < ?")
|
||||
(else (error "unknown system"))))))
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((query-list pgc pst 3) ((3) 0 () 0 () () (c values c (c 0 c 1 c 2))) #"" #"")
|
||||
((query-list pgc pst 3) ((3) 0 () 0 () () (c values c (c 0 c 1 c 2))) #"" #"")
|
||||
((with-handlers
|
||||
((exn:fail:sql? exn:fail:sql-info))
|
||||
(query pgc "select * from nosuchtable"))
|
||||
((3)
|
||||
0
|
||||
()
|
||||
0
|
||||
()
|
||||
()
|
||||
(c
|
||||
values
|
||||
c
|
||||
(c
|
||||
(c severity u . "ERROR")
|
||||
c
|
||||
(c code u . "42P01")
|
||||
c
|
||||
(c message u . "relation \"nosuchtable\" does not exist")
|
||||
c
|
||||
(c position u . "15")
|
||||
c
|
||||
(c file u . "parse_relation.c")
|
||||
c
|
||||
(c line u . "857")
|
||||
c
|
||||
(c routine u . "parserOpenTable"))))
|
||||
#""
|
||||
#"")
|
||||
155
collects/db/scribblings/log-for-sql-types.rktd
Normal file
155
collects/db/scribblings/log-for-sql-types.rktd
Normal file
|
|
@ -0,0 +1,155 @@
|
|||
;; This file was created by make-log-based-eval
|
||||
((require racket/class db db/util/postgresql db/util/datetime)
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((begin
|
||||
(define pgc (dsn-connect 'db-scribble-env))
|
||||
(query-exec
|
||||
pgc
|
||||
"create temporary table the_numbers (n integer, d varchar(20))")
|
||||
(query-exec pgc "insert into the_numbers values (0, 'nothing')")
|
||||
(query-exec
|
||||
pgc
|
||||
"insert into the_numbers values (1, 'the loneliest number')")
|
||||
(query-exec pgc "insert into the_numbers values (2, 'company')")
|
||||
(query-exec pgc "insert into the_numbers values (3, 'a crowd')"))
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select count(*) from the_numbers")
|
||||
((3) 0 () 0 () () (c values c 4))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select false") ((3) 0 () 0 () () (c values c #f)) #"" #"")
|
||||
((query-value pgc "select 1 + $1" 2) ((3) 0 () 0 () () (c values c 3)) #"" #"")
|
||||
((query-value pgc "select inet '127.0.0.1'")
|
||||
((3)
|
||||
0
|
||||
()
|
||||
0
|
||||
()
|
||||
()
|
||||
(c exn c "query-value: unsupported type\n type: inet\n typeid: 869"))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select cast(inet '127.0.0.1' as varchar)")
|
||||
((3) 0 () 0 () () (c values c (u . "127.0.0.1/32")))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select real '+Infinity'")
|
||||
((3) 0 () 0 () () (c values c +inf.0))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select numeric '12345678901234567890'")
|
||||
((3) 0 () 0 () () (c values c 12345678901234567890))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select 1 in (1, 2, 3)")
|
||||
((3) 0 () 0 () () (c values c #t))
|
||||
#""
|
||||
#"")
|
||||
((query-value
|
||||
pgc
|
||||
"select 1 = any ($1::integer[])"
|
||||
(list->pg-array (list 1 2 3)))
|
||||
((3) 0 () 0 () () (c values c #t))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select 1 = any ($1)" (list 1 2 3))
|
||||
((3) 0 () 0 () () (c values c #t))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select $1::integer = any ($2)" 1 (list 1 2 3))
|
||||
((3) 0 () 0 () () (c values c #t))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select $1 = any ($2)" 1 (list 1 2 3))
|
||||
((3)
|
||||
0
|
||||
()
|
||||
0
|
||||
()
|
||||
()
|
||||
(c
|
||||
exn
|
||||
c
|
||||
"query-value: cannot convert given value to SQL type\n given: 1\n type: string\n dialect: PostgreSQL"))
|
||||
#""
|
||||
#"")
|
||||
((query-value c "select NULL")
|
||||
((3)
|
||||
0
|
||||
()
|
||||
0
|
||||
()
|
||||
()
|
||||
(c exn c "c: undefined;\n cannot reference undefined identifier"))
|
||||
#""
|
||||
#"")
|
||||
((sql-null->false "apple") ((3) 0 () 0 () () (c values c "apple")) #"" #"")
|
||||
((sql-null->false sql-null) ((3) 0 () 0 () () (c values c #f)) #"" #"")
|
||||
((sql-null->false #f) ((3) 0 () 0 () () (c values c #f)) #"" #"")
|
||||
((false->sql-null "apple") ((3) 0 () 0 () () (c values c "apple")) #"" #"")
|
||||
((false->sql-null #f)
|
||||
((3)
|
||||
1
|
||||
(((lib "db/private/generic/sql-data.rkt") . deserialize-info:sql-null-v0))
|
||||
0
|
||||
()
|
||||
()
|
||||
(c values c (0)))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select date '25-dec-1980'")
|
||||
((3)
|
||||
1
|
||||
(((lib "db/private/generic/sql-data.rkt") . deserialize-info:sql-date-v0))
|
||||
0
|
||||
()
|
||||
()
|
||||
(c values c (0 1980 12 25)))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select time '7:30'")
|
||||
((3)
|
||||
1
|
||||
(((lib "db/private/generic/sql-data.rkt") . deserialize-info:sql-time-v0))
|
||||
0
|
||||
()
|
||||
()
|
||||
(c values c (0 7 30 0 0 #f)))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select timestamp 'epoch'")
|
||||
((3)
|
||||
1
|
||||
(((lib "db/private/generic/sql-data.rkt")
|
||||
.
|
||||
deserialize-info:sql-timestamp-v0))
|
||||
0
|
||||
()
|
||||
()
|
||||
(c values c (0 1970 1 1 0 0 0 0 #f)))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select timestamp with time zone 'epoch'")
|
||||
((3)
|
||||
1
|
||||
(((lib "db/private/generic/sql-data.rkt")
|
||||
.
|
||||
deserialize-info:sql-timestamp-v0))
|
||||
0
|
||||
()
|
||||
()
|
||||
(c values c (0 1969 12 31 19 0 0 0 -18000)))
|
||||
#""
|
||||
#"")
|
||||
((sql-bits->list (string->sql-bits "1011"))
|
||||
((3) 0 () 0 () () (c values c (c #t c #f c #t c #t)))
|
||||
#""
|
||||
#"")
|
||||
((sql-bits->string (query-value pgc "select B'010110111'"))
|
||||
((3) 0 () 0 () () (c values c (u . "010110111")))
|
||||
#""
|
||||
#"")
|
||||
172
collects/db/scribblings/log-for-using-db.rktd
Normal file
172
collects/db/scribblings/log-for-using-db.rktd
Normal file
|
|
@ -0,0 +1,172 @@
|
|||
;; This file was created by make-log-based-eval
|
||||
((require racket/class db db/util/postgresql db/util/datetime)
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((require db) ((3) 0 () 0 () () (c values c (void))) #"" #"")
|
||||
((define pgc (dsn-connect 'db-scribble-env))
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((query-exec
|
||||
pgc
|
||||
"create temporary table the_numbers (n integer, d varchar(20))")
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((query-exec pgc "insert into the_numbers values (0, 'nothing')")
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((query-exec pgc "insert into the_numbers values (1, 'the loneliest number')")
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((query-exec pgc "insert into the_numbers values (2, 'company')")
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((query pgc "insert into the_numbers values (3, 'a crowd')")
|
||||
((3)
|
||||
1
|
||||
(((lib "db/private/generic/interfaces.rkt")
|
||||
.
|
||||
deserialize-info:simple-result-v0))
|
||||
0
|
||||
()
|
||||
()
|
||||
(c values c (0 (c (c command u . "INSERT 0 1")))))
|
||||
#""
|
||||
#"")
|
||||
((query pgc "select n, d from the_numbers where n % 2 = 0")
|
||||
((3)
|
||||
1
|
||||
(((lib "db/private/generic/interfaces.rkt")
|
||||
.
|
||||
deserialize-info:rows-result-v0))
|
||||
0
|
||||
()
|
||||
()
|
||||
(c
|
||||
values
|
||||
c
|
||||
(0
|
||||
(c
|
||||
(c
|
||||
(c name u . "n")
|
||||
c
|
||||
(c typeid . 23)
|
||||
c
|
||||
(c type-size . 4)
|
||||
c
|
||||
(c type-mod . -1))
|
||||
c
|
||||
(c
|
||||
(c name u . "d")
|
||||
c
|
||||
(c typeid . 1043)
|
||||
c
|
||||
(c type-size . -1)
|
||||
c
|
||||
(c type-mod . 24)))
|
||||
(c (v! 0 (u . "nothing")) c (v! 2 (u . "company"))))))
|
||||
#""
|
||||
#"")
|
||||
((query-rows pgc "select n, d from the_numbers where n % 2 = 0")
|
||||
((3)
|
||||
0
|
||||
()
|
||||
0
|
||||
()
|
||||
()
|
||||
(c values c (c (v! 0 (u . "nothing")) c (v! 2 (u . "company")))))
|
||||
#""
|
||||
#"")
|
||||
((query-row pgc "select * from the_numbers where n = 0")
|
||||
((3) 0 () 0 () () (c values c (v! 0 (u . "nothing"))))
|
||||
#""
|
||||
#"")
|
||||
((query-list pgc "select d from the_numbers order by n")
|
||||
((3)
|
||||
0
|
||||
()
|
||||
0
|
||||
()
|
||||
()
|
||||
(c
|
||||
values
|
||||
c
|
||||
(c
|
||||
(u . "nothing")
|
||||
c
|
||||
(u . "the loneliest number")
|
||||
c
|
||||
(u . "company")
|
||||
c
|
||||
(u . "a crowd"))))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select count(*) from the_numbers")
|
||||
((3) 0 () 0 () () (c values c 4))
|
||||
#""
|
||||
#"")
|
||||
((query-value pgc "select d from the_numbers where n = 5")
|
||||
((3)
|
||||
0
|
||||
()
|
||||
0
|
||||
()
|
||||
()
|
||||
(c
|
||||
exn
|
||||
c
|
||||
"query-value: query returned wrong number of rows\n statement: \"select d from the_numbers where n = 5\"\n expected: 1\n got: 0"))
|
||||
#""
|
||||
#"")
|
||||
((query-maybe-value pgc "select d from the_numbers where n = 5")
|
||||
((3) 0 () 0 () () (c values c #f))
|
||||
#""
|
||||
#"")
|
||||
((for
|
||||
(((n d) (in-query pgc "select * from the_numbers where n < 4")))
|
||||
(printf "~a: ~a\n" n d))
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#"0: nothing\n1: the loneliest number\n2: company\n3: a crowd\n"
|
||||
#"")
|
||||
((for/fold
|
||||
((sum 0))
|
||||
((n (in-query pgc "select n from the_numbers")))
|
||||
(+ sum n))
|
||||
((3) 0 () 0 () () (c values c 6))
|
||||
#""
|
||||
#"")
|
||||
((begin
|
||||
(with-handlers
|
||||
((exn:fail? (lambda (e) (printf "~a~n" (exn-message e)))))
|
||||
(query-value pgc "select NoSuchField from NoSuchTable"))
|
||||
(query-value pgc "select 'okay to proceed!'"))
|
||||
((3) 0 () 0 () () (c values c (u . "okay to proceed!")))
|
||||
#"query-value: relation \"nosuchtable\" does not exist\n SQLSTATE: 42P01\n"
|
||||
#"")
|
||||
((query-value pgc "select d from the_numbers where n = $1" 2)
|
||||
((3) 0 () 0 () () (c values c (u . "company")))
|
||||
#""
|
||||
#"")
|
||||
((query-list pgc "select n from the_numbers where n > $1 and n < $2" 0 3)
|
||||
((3) 0 () 0 () () (c values c (c 1 c 2)))
|
||||
#""
|
||||
#"")
|
||||
((define get-less-than-pst
|
||||
(prepare pgc "select n from the_numbers where n < $1"))
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((query-list pgc get-less-than-pst 1)
|
||||
((3) 0 () 0 () () (c values c (c 0)))
|
||||
#""
|
||||
#"")
|
||||
((query-list pgc (bind-prepared-statement get-less-than-pst '(2)))
|
||||
((3) 0 () 0 () () (c values c (c 0 c 1)))
|
||||
#""
|
||||
#"")
|
||||
((void) ((3) 0 () 0 () () (c values c (void))) #"" #"")
|
||||
49
collects/db/scribblings/log-for-util.rktd
Normal file
49
collects/db/scribblings/log-for-util.rktd
Normal file
|
|
@ -0,0 +1,49 @@
|
|||
;; This file was created by make-log-based-eval
|
||||
((require racket/class db db/util/postgresql db/util/datetime)
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((begin
|
||||
(define pgc (dsn-connect 'db-scribble-env))
|
||||
(query-exec
|
||||
pgc
|
||||
"create temporary table the_numbers (n integer, d varchar(20))")
|
||||
(query-exec pgc "insert into the_numbers values (0, 'nothing')")
|
||||
(query-exec
|
||||
pgc
|
||||
"insert into the_numbers values (1, 'the loneliest number')")
|
||||
(query-exec pgc "insert into the_numbers values (2, 'company')")
|
||||
(query-exec pgc "insert into the_numbers values (3, 'a crowd')"))
|
||||
((3) 0 () 0 () () (c values c (void)))
|
||||
#""
|
||||
#"")
|
||||
((sql-datetime->srfi-date (query-value pgc "select time '7:30'"))
|
||||
((3)
|
||||
1
|
||||
(((lib "srfi/19/time.rkt") . deserialize-info:tm:date-v0))
|
||||
0
|
||||
()
|
||||
()
|
||||
(c values c (0 0 0 30 7 0 0 0 0)))
|
||||
#""
|
||||
#"")
|
||||
((sql-datetime->srfi-date (query-value pgc "select date '25-dec-1980'"))
|
||||
((3)
|
||||
1
|
||||
(((lib "srfi/19/time.rkt") . deserialize-info:tm:date-v0))
|
||||
0
|
||||
()
|
||||
()
|
||||
(c values c (0 0 0 0 0 25 12 1980 0)))
|
||||
#""
|
||||
#"")
|
||||
((sql-datetime->srfi-date (query-value pgc "select timestamp 'epoch'"))
|
||||
((3)
|
||||
1
|
||||
(((lib "srfi/19/time.rkt") . deserialize-info:tm:date-v0))
|
||||
0
|
||||
()
|
||||
()
|
||||
(c values c (0 0 0 0 0 1 1 1970 0)))
|
||||
#""
|
||||
#"")
|
||||
|
|
@ -3,10 +3,14 @@
|
|||
scribble/eval
|
||||
scribble/struct
|
||||
racket/sandbox
|
||||
racket/runtime-path
|
||||
"config.rkt"
|
||||
"tabbing.rkt"
|
||||
(for-label db db/util/geometry db/util/postgresql racket/dict))
|
||||
|
||||
@(define-runtime-path log-file "log-for-query.rktd")
|
||||
@(define the-eval (make-pg-eval log-file #t))
|
||||
|
||||
@;{ c - misc connection (alias to pgc)
|
||||
myc - MySQL connection (???)
|
||||
slc - SQLite connection (???)
|
||||
|
|
@ -791,3 +795,6 @@ A struct type property for creating new kinds of statements. The
|
|||
property value is applied to the struct instance and a connection, and
|
||||
it must return a @tech{statement}.
|
||||
}
|
||||
|
||||
|
||||
@(close-eval the-eval)
|
||||
|
|
|
|||
|
|
@ -3,11 +3,15 @@
|
|||
scribble/eval
|
||||
scribble/struct
|
||||
racket/sandbox
|
||||
racket/runtime-path
|
||||
"config.rkt"
|
||||
"tabbing.rkt"
|
||||
(for-label (prefix-in srfi: srfi/19)
|
||||
db db/util/geometry db/util/postgresql))
|
||||
|
||||
@(define-runtime-path log-file "log-for-sql-types.rktd")
|
||||
@(define the-eval (make-pg-eval log-file #t))
|
||||
|
||||
@title[#:tag "sql-types"]{SQL Types and Conversions}
|
||||
|
||||
@declare-exporting[db db/base #:use-sources (db/base)]
|
||||
|
|
@ -535,3 +539,6 @@ represented by sql-bits values.
|
|||
(sql-bits->string (query-value pgc "select B'010110111'"))
|
||||
]
|
||||
}
|
||||
|
||||
|
||||
@(close-eval the-eval)
|
||||
|
|
|
|||
|
|
@ -3,9 +3,13 @@
|
|||
scribble/eval
|
||||
scribble/struct
|
||||
racket/sandbox
|
||||
racket/runtime-path
|
||||
"config.rkt"
|
||||
(for-label db db/util/testing racket/dict web-server/lang/web))
|
||||
|
||||
@(define-runtime-path log-file "log-for-using-db.rktd")
|
||||
@(define the-eval (make-pg-eval log-file #f))
|
||||
|
||||
@title[#:tag "using-db"]{Using Database Connections}
|
||||
|
||||
This section introduces this library's basic features and covers some
|
||||
|
|
@ -39,6 +43,8 @@ configuration (see @secref{creating-connections} for other connection examples):
|
|||
|
||||
Use @racket[query-exec] method to execute a SQL statement for effect.
|
||||
|
||||
@;{ Keep these examples in sync with config.rkt }
|
||||
|
||||
@interaction[#:eval the-eval
|
||||
(query-exec pgc
|
||||
"create temporary table the_numbers (n integer, d varchar(20))")
|
||||
|
|
@ -448,3 +454,6 @@ web-server
|
|||
By using a virtual connection backed by a connection pool, a servlet
|
||||
can achieve simplicity, isolation, and performance all at the same
|
||||
time.
|
||||
|
||||
|
||||
@(close-eval the-eval)
|
||||
|
|
|
|||
|
|
@ -3,9 +3,13 @@
|
|||
scribble/eval
|
||||
scribble/struct
|
||||
racket/sandbox
|
||||
racket/runtime-path
|
||||
"config.rkt"
|
||||
(for-label db db/util/datetime db/util/geometry db/util/postgresql db/util/testing))
|
||||
|
||||
@(define-runtime-path log-file "log-for-util.rktd")
|
||||
@(define the-eval (make-pg-eval log-file #t))
|
||||
|
||||
@title[#:tag "util"]{Utilities}
|
||||
|
||||
The bindings described in this section are provided by the specific
|
||||
|
|
@ -230,3 +234,5 @@ call (see @secref["ffi-concurrency"]). Even so, it may not accurately
|
|||
simulate an ODBC connection that internally uses cursors to fetch data
|
||||
on demand, as each fetch would introduce additional latency.
|
||||
}
|
||||
|
||||
@(close-eval the-eval)
|
||||
|
|
|
|||
Loading…
Reference in New Issue
Block a user