Is NOT EXISTS or LEFT OUTER JOIN...IS NULL more efficient for finding records in one table that aren't in another? Specifically, I'm trying to figure out which of the two queries below is better: ...
So I have this query. SELECT * FROM `Comment` WHERE `Target` = '".$_GET['pp']."' AND `Id` NOT IN (SELECT `Target` FROM `Delete` WHERE `Type` = 'comment') ORDER ...
I have something like: SELECT ((SELECT SUM(VAL_TOTALA_FEROASE+VAL_TOTALA_NEFEROASE+VAL_TOTALA_ALTELE1+VAL_TOTALA_ALTELE2+ ...