MySQL SELECT Query (Emtpy Set).

MySQL SELECT Query (Emtpy Set).

I have an MySQL Query that give me Empty Set.

SELECT IFNULL(TIME_TO_SEC(TIMEDIFF(NOW(), acctstarttime)),0)
FROM radacct
WHERE UserName='Test'
ORDER BY acctstarttime
LIMIT 1:

I need something like this, but without IFNULL.


Amateur description? :
SELECT """IF Empty SET""""(TIME_TO_SEC(TIMEDIFF(NOW(), acctstarttime)),0)
FROM radacct
WHERE UserName='Test'
ORDER BY acctstarttime
LIMIT 1:

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Requirements

Amateur description [smiley] :
SELECT """IF Empty SET""""(TIME_TO_SEC(TIMEDIFF(NOW(), acctstarttime)),0)
FROM radacct
WHERE UserName='Test'
ORDER BY acctstarttime
LIMIT 1:

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Skills Required

Mysql