Patrice, You might have a look at "views" as well. That's not strictily speaking a stored procedure, but maybe it's what you are searching for?
Philippe Lang -----Message d'origine----- De : [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] De la part de Richard Huxton Envoyé : mardi, 24. août 2004 11:26 À : Patrice OLIVER Cc : [EMAIL PROTECTED] Objet : Re: [SQL] stored procedures and type of returned result. Patrice OLIVER wrote: > Hello, > > I'm new in PostgreSQL. It's very cool. Hello, and yes it is isn't it :-) > I would like to know how to return a set of records from a stored > procedure. > > For example, i would like to execute these sql command from a stored > procedure : > > select t.typnum, t.typcom, t.typcateg, s.symurlgraph from structure.type t > left join structure.symbole s > on t.typcode = s.typcode; Broadly speaking you'll want something like: CREATE TYPE my_return_type AS ( a integer, b text ); CREATE FUNCTION my_function(integer) RETURNS SETOF my_return_type AS ' SELECT foo_a, foo_b FROM foo WHERE foo_c = $1; ' LANGUAGE SQL; You don't need to define your own type if you want to return the same columns as a table, you can use the table-name instead. For more complex cases where you need procedural code, you probably want to read Stephan Szabo's set-returning-functions article on techdocs. http://techdocs.postgresql.org/guides/SetReturningFunctions HTH -- Richard Huxton Archonet Ltd ---------------------------(end of broadcast)--------------------------- TIP 3: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faqs/FAQ.html
