Re: Question about stored procedures
От | Michael Fuhr |
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Тема | Re: Question about stored procedures |
Дата | |
Msg-id | 20060612122348.GA55839@winnie.fuhr.org обсуждение исходный текст |
Ответ на | Re: Question about stored procedures ("A. Kretschmer" <andreas.kretschmer@schollglas.com>) |
Ответы |
Re: Question about stored procedures
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Список | pgsql-novice |
On Mon, Jun 12, 2006 at 11:15:28AM +0200, A. Kretschmer wrote: > am 12.06.2006, um 10:58:04 +0200 mailte Greg folgendes: > > i.e I would like the query to be "select name, email from users where userid > > = @userid" > > If you want to execute dynamic querys, read > > http://www.postgresql.org/docs/8.1/interactive/plpgsql-statements.html#PLPGSQL-STATEMENTS-EXECUTING-DYN The above query doesn't need to be dynamic if @userid is the only part that varies. Dynamic queries are appropriate when you want to vary the structure of the query itself, such as which columns are selected, which table gets selected from, which columns to test in the WHERE clause, which columns to order by, etc.; or if you want to defeat plan caching (e.g., when using temporary tables). -- Michael Fuhr
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