From: "Thomas Løcke" <tl@ada-dk.org>
Subject: GNATcoll and parameterized queries have me confused
Date: Wed, 23 Feb 2011 12:58:11 +0100
Date: 2011-02-23T12:58:11+01:00 [thread overview]
Message-ID: <4d64f653$0$23761$14726298@news.sunsite.dk> (raw)
Hey all,
When I insert data into a PostgreSQL database using parameterized
queries, I end up with more characters than I've bargained for.
If I do this:
Conn.Execute ("INSERT INTO tbl (name) VALUES ('Peter')");
I end up with Peter in the database. Plain Peter. 5 characters.
If I instead do this:
N : aliased constant String := "Peter";
P : constant Prepared_Statement := Prepare
("INSERT INTO tbl (name) VALUES ($1)");
Conn.Execute (Stmt => P,
Params => (1 => +N'Access));
I end up with 'Peter' in the database. 7 characters. Two single
quotes added by GNATcoll.
I've tried doing a manual parameterized insert using psql:
PREPARE foo (text) AS INSERT INTO tbl VALUES($1);
EXECUTE foo ('Peter');
I've also fired up the phpPgAdmin web-tool and tried using that.
And the result is, for both, as expected; plain old 5 character Peter.
So PostgreSQL is apparently not at fault here.
Am I doing something wrong with GNATcoll? I'd rather not have those
extra single quotes added to all my string data. :o)
--
Thomas L�cke
Email: tl at ada-dk.org
Web: http//:ada-dk.org
http://identi.ca/thomaslocke
next reply other threads:[~2011-02-23 11:58 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-23 11:58 Thomas Løcke [this message]
2011-02-23 12:32 ` GNATcoll and parameterized queries have me confused Thomas Løcke
2011-02-25 14:11 ` Possible "bug" found in gnatcoll-sql_impl.adb Thomas Løcke
2011-02-25 14:44 ` Ludovic Brenta
2011-02-25 14:53 ` Thomas Løcke
2011-02-28 11:17 ` Ludovic Brenta
2011-02-28 14:04 ` Emmanuel Briot
2011-03-01 8:03 ` Thomas Løcke
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