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What is the output of value in below query?
declare @value varchar(20);
select coalesce(@value,'vishal') as value;
on 1/14/2014 | Category:
Sql Server Interview questions
| Views: 1677 |
Select from following answers:
command executed successfully
none of these.
Answer would be vishal because coalesce returns 1st non-null column value.and here @value has not been assigned a value,so it will be null.so it coalesce will return 2nd expression value that is vishal.
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