MySQL Stored Procedures not working with SELECT (basic question)

Question

I am using a platform (perfectforms) that requires me to use stored procedures for most of my queries, and having never used stored procedures, I can\'t figure out what I\'m

Answer 1

Figured it out. This is not a bug with PHP (though it used to be) - it's a bug in some versions of phpmyadmin. The same bug intermittently reappears and is then fixed in various subversions (see above):

#1312 - PROCEDURE [name] can't return a result set in the given context

This behavior appears limited to SELECT statements within stored procedures inside phpmyadmin.

Using a client like MySQL Workbench works around the problem (or you could upgrade phpmyadmin, but that's a pain if you're on a shared server like I am).

Anyway, thanks to everyone for your help.

Answer 2

When I execute the following:

DELIMITER //
DROP PROCEDURE IF EXISTS test_db.test_proc//
CREATE PROCEDURE test_db.test_proc() SELECT 'foo'; //
DELIMITER ;

Followed by

CALL test_db.test_proc();

I shows me a result set like:

+-----+
| foo |
+-----+
| foo |
+-----+

I'm using PHP 5.3.1, MySQL 5.1.41 with phpMyAdmin 3.2.4.

Perhaps you just misspelled your procedure name?
Or could there be a problem with your PHP or MySQL installations? (Perhaps a bug. Have you tried updating to the latest versions?)

Answer 3

This probably is centered around a bug dealing with PHP and SELECT within a stored procedure/routine. One possible work around is to use the SELECT... INTO inside of the stored procedure to bring the result down to one variable. This worked in some other cases that I read.

   SELECT * FROM category INTO c;

Answer 4

Check your php version to see if this is a reported bug (see here).

See this post: Can't return a result set in the given context