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What is the output of below query?
declare @str1 varchar(50);
declare @str2 varchar(50);
set @str1 = 'Vishal';
set @str2= 'Kumar';
on 12/31/2013 | Category:
Sql Server Interview questions
| Views: 4182 |
Select from following answers:
None of These.
Output will be Vishal.
As NULLIF Returns a null value if the two specified expressions are equal.But it returns the first expression if the two expressions are not equal.
Here,@str1 and @str2 have the different values assigned that is Vishal and Kumar.
Here both variables have different values.Therefore it will return 1st argument value that is Vishal.
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