>How do select from TableA, and exclude records that match TableB?
Two options.
select * from TableA;
where KeyField not in (select KeyField from TableB)
The second option is a little more involved; I'll just outline the basic principle.
It consists of doing an outer join (...from TableA left join TableB on TableA.KeyField = TableB.KeyField...) Now, any field you include from TableB will have a NULL value if there is no match.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)
