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siumui
Starting Member

48 Posts
Posted - 04/27/2012 :  10:19:18  Show Profile  Reply with Quote
Hello all,

Codes:

SELECT Account,
CASE WHEN mailed_date IS NOT NULL THEN DATEDIFF(dd, received_date, mailed_date)
CASE WHEN payment_date IS NOT NULL THEN DATEDIFF(dd, received_date, payment_date)
ELSE NULL END AS 'Days'
FROM my_table

My question is when the condition is met for the first WHEN CASE, does it continues with the 2nd CASE WHEN or not?

Your help is greatly appreciated. Thank you.

robvolk
Most Valuable Yak

USA
15568 Posts
Posted - 04/27/2012 :  10:25:50  Show Profile  Visit robvolk's Homepage  Reply with Quote
No, CASE evaluation stops at the first condition that's true.
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siumui
Starting Member

48 Posts
Posted - 04/27/2012 :  11:21:04  Show Profile  Reply with Quote
quote:
Originally posted by robvolk

No, CASE evaluation stops at the first condition that's true.


Thank you.
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visakh16
Very Important crosS Applying yaK Herder

India
48097 Posts
Posted - 04/27/2012 :  15:16:18  Show Profile  Reply with Quote
actually your case statement can be simplied as

SELECT Account,
DATEDIFF(dd, received_date, COALESCE(mailed_date,payment_date)) AS 'Days'
FROM my_table


------------------------------------------------------------------------------------------------------
SQL Server MVP
http://visakhm.blogspot.com/
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