I want all the records from two joined tables but where the JOIN applies
(say I join on the ID field and not all LEFT table IDs are in the RIGHT
table) I only want the records which comply with a test.  I tried:

SELECT tbl1.fld1, tbl2.fld1 FROM tbl1 LEFT JOIN tbl2 ON tbl1.ID=tbl2.ID
WHERE tbl2.test="yes"

I only want to apply the test where the join applies.  Can anyone suggest a
solution?  I was thinking of: tbl2.test!="no".

It's actually a bit more complicated: I have a few WHERE conditions as
WHERE (tbl2.test="yes" && tbl2.other="yestoo") && tbl1.thistest="no"



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