Question

I am using a subquery to return a count as an integer value to my main query. This query is used to rebind an ASP.NET DataGrid and I have only two characters width available for this column. I want to restrict the width to two characters. So, I want to set a value of 99 when the count exceeds 99. I can’t figure a way to do this? I can’t see how to apply a case statement here.

SELECT
     MEMB_ID,
     MEMB_Name,
     SELECT COUNT(*)
 FROM SessionOrder
WHERE SessionOrder.SORD_MEMB_ID = m.MEMB_ID 
  And SessionOrder.SORD_NumberCompleteDownloads <> 0
     As MEMB_Downloads,
     MEMB_JoinDate
FROM Member

How can this be done?

Answer 1

The CASE expression can look like this:

CASE WHEN COUNT(*) > 99 THEN 99 ELSE COUNT(*) END

There appear to be a couple of errors with your existing query (for example m is not defined). With these errors corrected and the above change made the resulting query could look like this:

SELECT
     MEMB_ID,
     MEMB_Name,
     (
         SELECT CASE WHEN COUNT(*) > 99 THEN 99 ELSE COUNT(*) END
         FROM SessionOrder
         WHERE SessionOrder.SORD_MEMB_ID = MEMB_ID 
         AND SessionOrder.SORD_NumberCompleteDownloads <> 0
     ) AS MEMB_Downloads,
     MEMB_JoinDate
FROM Member