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MS SQL 2000 Query

Posted on 2009-04-12
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Last Modified: 2012-05-06
I have two tables with one to many relationship namley employees (Emp) and qualifications (Qual). I want to select all employees with the most recent qualification. Each employee might have more than one qualification. The two tables are joined by the emp_cpr column. I tried the following SQL query :

SELECT Emp.CPR, Emp.name, Max(Qual.Date) AS Date
FROM Emp INNER JOIN Qual ON emp.cpr = Qual.cpr
GROUP BY Emp.cpr,emp.name

It's working  only if I select two columns from the first table namely emp_cpr and emp_name. I want to group all employees by cpr showing only thier latest qualification.

Thanks
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Question by:AZZA-KHAMEES
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3 Comments
 
LVL 92

Expert Comment

by:Patrick Matthews
ID: 24126215
SELECT e.cpr, q.QualDescr --guessing on the column name here!
FROM Emp e INNER JOIN
      Qual q ON e.cpr = q.CPR INNER JOIN
      (SELECT q2.cpr, Max(q2.Date) AS MaxDate
      FROM Qual q2
      GROUP BY q2.cpr) z ON q.cpr = z.cpr AND q.Date = z.MaxDate
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LVL 92

Accepted Solution

by:
Patrick Matthews earned 500 total points
ID: 24126220
Sorry, make that


SELECT e.cpr, e.Name, q.QualDescr --guessing on the column name here!
FROM Emp e INNER JOIN
      Qual q ON e.cpr = q.CPR INNER JOIN
      (SELECT q2.cpr, Max(q2.Date) AS MaxDate
      FROM Qual q2
      GROUP BY q2.cpr) z ON q.cpr = z.cpr AND q.Date = z.MaxDate
0
 

Author Closing Comment

by:AZZA-KHAMEES
ID: 31569339
Thanks alot. It's working fine
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