Question

I found here a topic about an MySQL IF, ELSE query,i adapted it but i can’t figure it out what is the problem with it.

Here is the query:

IF (SELECT * FROM `jos_import03_07_2011` WHERE `cod_oem` = 'OP-4CL') IS NULL THEN 
INSERT INTO `jos_import03_07_2011` (`tip_imp`, `tip_produs`, `producator`,
    `cod_intern`, `desc`, `cod_oem`, `pret`, `valuta`) VALUES ('Imprimanta Laser', 
    'Piese Schimb', 'BROTHER', 'BR-200503', '', 'OP-4CL', '338.49', 'EUR'); 
ELSE UPDATE `jos_import03_07_2011` SET `pret` = '338.49' WHERE `cod_oem` = 'OP-4CL';
END IF;

And here is the error:

You have an error in your SQL syntax; check the manual that corresponds to your MySQL     
server version for the right syntax to use near 'IF (SELECT * FROM   
`jos_import03_07_2011` WHERE `cod_oem` = 'OP-4CL') IS NULL THE' at line 1

This is the original post:

Conditional mySQL statement. If true UPDATE, if false INSERT

Thanks,
Sebastian

UPDATE

Error code for IF EXISTS:

You have an error in your SQL syntax; check the manual that corresponds to your MySQL 
server version for the right syntax to use near 'IF EXISTS (SELECT * FROM 
`jos_import03_07_2011` WHERE `cod_oem` = 'OP-4CL') THEN' at line 1 

Answer 1

Any reason you can’t use the INSERT … ON DUPLICATE KEY syntax?

INSERT INTO `jos_import03_07_2011` (`tip_imp`, `tip_produs`, `producator`,
    `cod_intern`, `desc`, `cod_oem`, `pret`, `valuta`)
VALUES ('Imprimanta Laser', Piese Schimb', 'BROTHER', 'BR-200503', '', 'OP-4CL', '338.49', 'EUR')
ON DUPLICATE KEY UPDATE SET pret = VALUES(pret)

would be far more efficient: one less query and far less code to debug.