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MySQL  - All from one table, not if in other

Posted on 2013-01-09
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Last Modified: 2013-01-09
I have a table called Master, with a field in it called Unique.

I have a separate table, called tblLock, also with a field called Unique (both varchar)

I want a view of all the records in Master, UNLESS the unique fields match.  So the tblLock table excludes records from Master.

Thanks
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Question by:Rush_2112
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ralmada earned 2000 total points
ID: 38760247
you can try

select a.id, a.col1, a.col2
from Master a
left join tblLock b on a.id = b.id
where b.id is null
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by:Rush_2112
ID: 38760363
I found that this works:

AND (Manager_Filter.`Unique` NOT IN (Select `Unique` from tblLock))
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