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output of 2nd query seems correct. but why it is not returning 'not null' as ISNULL(NULL,'') will return '' and we are checking it against 0.

Rajan Patel
– Rajan Patel

2017-12-19 09:28:00 +00:00
Commented Dec 19, 2017 at 9:28
@RajanPatel your code asks for '' to be converted to 0 before checking. Why aren't you using IS NULL ? Why the convertion to '' and then to int?

Panagiotis Kanavos
– Panagiotis Kanavos

2017-12-19 09:29:06 +00:00
Commented Dec 19, 2017 at 9:29
@RajanPatel - because in first case it comparing with numeric vlaue thats why it get worked ..you can tried first case like this CASE ISNULL(@Test, 1) WHEN 0 THEN 'null' ELSE 'not null'

Pranay Rana
– Pranay Rana

2017-12-19 09:35:46 +00:00
Commented Dec 19, 2017 at 9:35

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