How to use case statement in nested queries?

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Hii,
CASE (Select FirstName + ' ' + LastName from Employee where Id = p.MeetingWith) WHEN '' THEN 'manager(tbs)' END AS ManagerName

this is my one column i am retriving in storeprocedure... what i want to do is .. if my coming column name is NULL or blank then i want to show manager name as "manager(tbs)" else i want to display coming result of manager name

Posted 26-Jul-13 3:40am

Torakami

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2 solutions

Solution 1

Actually, you can just use COALESCE().

Try

SQL

SELECT COALESCE(FirstName + ' ' + LastName, 'manager(tbs)') AS ManagerName
FROM Employee
WHERE id = p.MeetingWith

COALESCE will return the first NON NULL value it finds. So, if FirstName and LastName IS NULL then you will get 'manager(tbs)'

Posted 26-Jul-13 3:43am

ZurdoDev

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milenalukic · Accepted Answer · 2013-07-26T03:46:00

Hi,

All you need to do is to nest the case statements as follows:

SQL

Case when CASE (Select FirstName + ' ' + LastName from Employee where Id = p.MeetingWith) WHEN '' THEN 'manager(tbs)' END is null then 'manager(tbs)' when CASE (Select FirstName + ' ' + LastName from Employee where Id = p.MeetingWith) WHEN '' THEN 'manager(tbs)' END='' then 'manager(tbs)' else CASE (Select FirstName + ' ' + LastName from Employee where Id = p.MeetingWith) WHEN '' THEN 'manager(tbs)' END end as manager