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Case Statement problem

Author

Topic

buffer
Starting Member

6 Posts

Posted - 2007-06-25 : 17:30:29

Hey,

I'm trying to get a different column to display if the first column is null. What's happening though is I get null for the column output when I should be getting the u.first/lastName. I've verified that the u.name exists. Are there any errors in my code?


SELECT 
[requestID], 
[reqVUNetID], 
r.[departmentID], 

CASE r.[reqForLastName]
WHEN null THEN 
	u.lastName + ', ' + SUBSTRING(u.firstName,1,1) + '.' 
ELSE 
	[reqForLastName] + ', ' + SUBSTRING([reqForFirstName],1,1) + '.' 
END AS [requestedBy],

CONVERT(CHAR(8),r.[submitDate],10)	AS [submitDate], 
CONVERT(CHAR(8),r.[dueDate],10)		AS [dueDate], 
[reqStatus], 
d.departmentName

FROM [tblRequest] r
INNER JOIN tblDepartment d      ON r.departmentID = d.departmentID
INNER JOIN tblStatus s		ON r.reqStatus = s.statusID
INNER JOIN tblUser u		ON r.reqVUNetID = u.VUNetID
WHERE (s.statusName = 'unassigned') ORDER BY [dueDate], [submitDate], [reqForLastName]

dinakar
Master Smack Fu Yak Hacker

2507 Posts

Posted - 2007-06-25 : 17:37:39

Change your query to:


SELECT 
[requestID], 
[reqVUNetID], 
r.[departmentID], 

CASE WHEN r.[reqForLastName] IS NULL THEN 
	u.lastName + ', ' + SUBSTRING(u.firstName,1,1) + '.' 
ELSE 
	[reqForLastName] + ', ' + SUBSTRING([reqForFirstName],1,1) + '.' 
END AS [requestedBy],

CONVERT(CHAR(8),r.[submitDate],10)	AS [submitDate], 
CONVERT(CHAR(8),r.[dueDate],10)		AS [dueDate], 
[reqStatus], 
d.departmentName

FROM [tblRequest] r
INNER JOIN tblDepartment d      ON r.departmentID = d.departmentID
INNER JOIN tblStatus s		ON r.reqStatus = s.statusID
INNER JOIN tblUser u		ON r.reqVUNetID = u.VUNetID
WHERE (s.statusName = 'unassigned') ORDER BY [dueDate], [submitDate], [reqForLastName]

Dinakar Nethi
************************
Life is short. Enjoy it.
************************
http://weblogs.sqlteam.com/dinakar/

SwePeso
Patron Saint of Lost Yaks

30421 Posts

Posted - 2007-06-25 : 17:47:08

[code]ISNULL(reqForLastName + ', ' + SUBSTRING(reqForFirstName, 1, 1) + '.', u.lastName + ', ' + SUBSTRING(u.firstName, 1, 1) + '.') AS requestedBy,[/code]

Peter Larsson
Helsingborg, Sweden

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