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Need help creating SQL for MS Access Query

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Last Modified: 2021-01-16
I need help improving the performance of a query in MS Access which takes about two minutes to run.
The fields SHIPPINGSTATUS, STATUS, and SHELF are index.

The QUOTES table has about 500,000 records.
When I remove (only) the SHIPPINGSTATUS criteria and run the query it only takes two or three seconds to run and returns about 65,000 records.
When I remove only the STATUS criteria and run the query it takes less than a second to run and returns a handful of records.
However, when I use both criteria and the sort the query take several minutes to run.


SELECT *
FROM Quotes
WHERE (ShippingStatus='Waiting for QC to Pull') AND (left(SHELF,2)='SP') AND (STATUS = 'Quote Pending: BSVR Requested' OR STATUS = 'Quote Pending: SVR Requested' OR STATUS='Order Placed with US')  ORDER BY SHELF;
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