Michael L John (12/13/2012)
Remove this from the where clause and see if you still get a scan:AND coalesce(txSubtype,'') <> 'BACKORDER'
Then, do a search on this site for SARGABLE.
You can still include this check but you need to do it a little differently. First of all there is no point in using coalesce here. NULL can't be equal to anything so just remove it.
txSubType > 'BACKORDER' OR txSubType < 'BACKORDER'
That should keep it sargable.
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