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Need help with a query

Posted on 2016-08-08
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Last Modified: 2016-08-08
Hi Experts,

This is my query. I have attached the output I am getting.  How can I modify the query to get the userID and name only once.

SELECT C.ID, C.StudentID,c.ClassID, c.InstructorID ,c.TimeID ,(rtrim(U.UserFirstName)) + '' +
ltrim(rtrim(U.UserLastName)) as UserName,
ltrim(rtrim(U.AttendenceDay))  as AttendenceDay FROM CLASSSETUP as C
LEFT OUTER JOIN  USERDETAILS As U on C.StudentID=U.UserID
Where  C.ClassID =15 order by UserName
Query.txt
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Question by:RadhaKrishnaKiJaya
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4 Comments
 
LVL 70

Expert Comment

by:Éric Moreau
ID: 41747457
what do you do with other values like ID, clsid, InsID, ... which are not unique for a single user?
0
 
LVL 5

Expert Comment

by:Manuel Flores
ID: 41747463
using group by clause... however you should get rid of ID and TimeID... is this possible?
0
 
LVL 65

Accepted Solution

by:
Jim Horn earned 500 total points
ID: 41747465
You'll have to define exactly how you wish the query results to appear, as it looks like for each repeated userID it is returning different ID values and other columns, so the query appears to be working as designed.

For example, user Eulisis_MiddleEu, do you want to see ID values 201, 160, 193, or none at all?

If you only want to see StudentID and UserName..
SELECT DISTINCT 
   C.StudentID, 
   rtrim(U.UserFirstName)) + '' + ltrim(rtrim(U.UserLastName)) as UserName
FROM CLASSSETUP as C
   LEFT OUTER JOIN  USERDETAILS As U on C.StudentID=U.UserID
WHERE  C.ClassID =15 
ORDER BY U.UserLastName, U.UserFirstName

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Author Closing Comment

by:RadhaKrishnaKiJaya
ID: 41747497
Thank you.
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