Question

I have misplaced something in the ISNULL() function and need another set of eyes to find it. I’ve stared at it so much I’ve become brainlocked (I know what ISNULL() is, this is just a simple syntax error)

(SELECT tn.teamtext, tn.teamid, ISNULL(sum(ISNULL(case when CONVERT(smalldatetime,dModLast,101) BETWEEN '2012-03-01' AND '2012-03-10' then 1 else 0 end), 0), 0) AS cnt3
  FROM teamnames AS tn 
    LEFT OUTER JOIN caseaudit AS ca
    ON tn.teamID = ca.referteamID2
  WHERE ca.referteamid1 <> ca.referteamid2 AND isactive = 1 AND groupid = 18 AND accountid = 2 AND referteamid1 = 31 AND auditnote <> 'Suspend Case'
  GROUP BY tn.teamtext, tn.teamid) AS c

Answer 1

The ISNULL() function requires two arguments which you can see here:

http://msdn.microsoft.com/library/ms184325.aspx

The first one is the expression being tested, the second is the value to return if the expression tested evaluates to NULL.

Your second ISNULL() function only specifies one parameter:

ISNULL(case when CONVERT(smalldatetime,dModLast,101) 
       BETWEEN '2012-03-01' AND '2012-03-10' then 1 else 0 end)

You should try:

ISNULL((case when CONVERT(smalldatetime,dModLast,101) 
       BETWEEN '2012-03-01' AND '2012-03-10' then 1 else 0 end), 0)