我在此SQL中缺少什么

Question

What am I missing in the below:

WHERE sls.SalesStatus IN (1,2,3)  
AND hdr.DeliveryDate <> (CASE ISNULL(sls.SalesStatus,'1')

I am getting this error message: Incorrect syntax near ')'

Thank you!

Answer 1

Your code doesn't make sense. You could mean this:

WHERE sls.SalesStatus IN (1, 2, 3) AND  
      hdr.DeliveryDate <> COALESCE(sls.SalesStatus, '1') 

However, a column named DeliveryDate is an unlikely candidate for a comparison to either a string or the string value '1' .

It is possible that you mean something like:

WHERE sls.SalesStatus IN (1, 2, 3) AND
      hdr.DeliveryDate <> (CASE ISNULL(sls.SalesStatus,'1') WHEN '1' THEN ? ELSE ? END)

This is just speculation, but you would need to complete the logic.