In regards to my last e-mail what would be great is if I can get all the records in tab1 then subtract from there all the records that match the query tab1.id=tab2.rid and tab2.vid=46. The result would give me what I need but alas mysql doesn't support minus.
Joe
On Friday, January 16, 2004, at 11:49 AM, Roger Baklund wrote:
* sulewski [...]What I need is all records in table 1 that will not link to table 2 such that relid=rid and vid=46
Sounds like a job for LEFT JOIN...?
Join to the rows you do NOT want with a left join, and put as a condition in
the WHERE clause that a joined column IS NULL. Something like this:
SELECT tab1.* FROM tab1 LEFT JOIN tab2 ON tab2.rid=tab1.id AND tab2.vid=46 WHERE tab2.rid IS NULL
-- Roger
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