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thanks, you saved me a ton of time today!
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thanks, you saved me a ton of time today!

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We want to select all the rows that have an AID = 1 but don't have a matching AID = 2 with the same BID.<br />
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select ID, PersonID, AID, BID from [track] order by id<br />
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<a href="https://filedb.experts-exchange.com/incoming/2012/03_w11/559435/2.png" target="_blank" title="Tractrack table (6 KB)"><img alt="Tractrack table" class="file-block lazyload" style="max-width: 210px;" data-src="https://filedb.experts-exchange.com/incoming/2012/03_w11/559435/2.png" /></a>
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2.png

We want to select all the rows that have an AID = 1 but don't have a matching AID = 2 with the same BID.

select ID, PersonID, AID, BID from [track] order by id



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