Estimating Delivery Time

Question

I am trying to run a formatted search to display a simple estimated delivery time for each line item in my sales order.  My query is as follows:
SELECT (CASE
          WHEN (T0.OnHand - T0.IsCommitted) > 0
               THEN (DocDate + T0.LeadTime)
          WHEN (T0.OnHand - T0.IsCommitted) <= 0
               THEN (DocDate + 5 + T0.LeadTime)
     END)
FROM OITM
WHERE T0.ItemCode = $[$38.1.0.0]
This query errors out, any ideas?

Answer 1

Actually, I think we get 1 row with a NULL value. My bet is that we have NULL in T0.LeadTime.
Try this:
SELECT (CASE
WHEN (T0.OnHand - T0.IsCommited) > 0
THEN dateadd(Day, COALESCE(T0.LeadTime,0), GetDate())
WHEN (T0.OnHand - T0.IsCommited) <= 0
THEN dateadd(Day, (5 + COALESCE(T0.LeadTime,0)), GetDate())
END)
FROM OITM T0
WHERE T0.ItemCode = $[$38.1.0.0]
If you want to read more about nulls then check this:
http://www.sqlservercentral.com/columnists/mcoles/fourrulesfornulls.asp
HTH
Juha