Having an issue with t-sql and case statement with and/where clause - sql

Question

SELECT 3 AS LoggedIn, 83 AS MessageID, Data AS DistID, 1 AS StatusID
, 0 AS Important
, CASE WHEN (dd.SponsorID = 3) THEN 0 ELSE d.ReceiveUplineMessages END AS Test
, dd.SponsorID
FROM msg_SplitVar(',', #MessageList) sv
INNER JOIN Distributor d
ON d.DistID = sv.Data
INNER JOIN DistributorDetail dd
ON dd.DistID = sv.Data
WHERE Data NOT IN (SELECT DistID FROM MessageBlockList WHERE BlockedID = 3)
AND Test = 0
I have a field set in the distributor table ReceiveUplineMessages. This can be set to 0 or 1.
If they set this to 0 I only want to send them a message if it is from their sponsor (logged in)
I have the case statement working, but I'm having trouble with the AND clause.
The splitVar function just takes a string based array '3,4,5,6,7' and splits the data out to individual rows for an insert statement.
Anyone know what I am doing wrong in the AND clause? I only want them to show up if ReceiveUplineMessages is a 0.

Answer 1

try not using your Test alias in your WHERE clause:
SELECT 3 AS LoggedIn, 83 AS MessageID, Data AS DistID, 1 AS StatusID
, 0 AS Important
, CASE WHEN (dd.SponsorID = 3) THEN 0 ELSE d.ReceiveUplineMessages END AS Test
, dd.SponsorID
FROM msg_SplitVar(',', #MessageList) sv
INNER JOIN Distributor d
ON d.DistID = sv.Data
INNER JOIN DistributorDetail dd
ON dd.DistID = sv.Data
WHERE Data NOT IN (SELECT DistID FROM MessageBlockList WHERE BlockedID = 3)
AND (CASE WHEN (dd.SponsorID = 3) THEN 0 ELSE d.ReceiveUplineMessages END) = 0
or wrap your statement in another SELECT to use your Test in the WHERE:
SELECT t.*
FROM
(
SELECT 3 AS LoggedIn, 83 AS MessageID, Data AS DistID, 1 AS StatusID
, 0 AS Important
, CASE WHEN (dd.SponsorID = 3) THEN 0 ELSE d.ReceiveUplineMessages END AS Test
, dd.SponsorID
FROM msg_SplitVar(',', #MessageList) sv
INNER JOIN Distributor d
ON d.DistID = sv.Data
INNER JOIN DistributorDetail dd
ON dd.DistID = sv.Data
WHERE Data NOT IN (SELECT DistID FROM MessageBlockList WHERE BlockedID = 3)
) t
WHERE t.Test = 0