How to get only needed fields in the Group By Sql Query with Aggregate and with no aggregate function in Sql 2005?

Question

0.00/5 (No votes)

See more:

SQL-Server-2005

, +

How to get only needed fields in the Group By Sql Query with Aggregate and with no aggregate function in Sql 2005? I tried following query with no aggregate function but can't group with needed fields only.

SQL

SELECT E.EmpId AS EMPID,E.CorporateId AS CORPID,

   E.FirstName+' '+E.LastName AS NAME, E.AccountNo,
  --[dbo].[fnMaskCardNo](E.CardNo) as CardNo,
    ES.Salary AS Amount,

    CASE WHEN  E.FollowMOLWorkFlow!=NULL THEN 'YES'
    ELSE 'NO' END  as WPS

  FROM EMPLOYEE E,CORPORATE C,EMPSALARY ES

        WHERE  (E.CorporateId='IBM') and
        ES.SALMONTH=3  and ES.SALYEAR=2014
          AND ES.Mode in('U')

        and C.IsDeleted=0

        GROUP BY E.CorporateId,E.EmpId,

 E.FirstName+' '+E.LastName,E.AccountNo, E.FollowMOLWorkFlow

Posted 13-Mar-14 20:42pm

Rahul 105

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Christian Graus · Answer 1 · 2014-03-14T13:12:00

This won't work, for a number of reasons. First of all E.FollowMOLWorkFlow!=NULL will not work. You need to use is not null, as in E.FollowMOLWorkFlow is not null. Try writing a case statement that checks if null = null. It never does, so even if E.FollowMOLWorkFlow is null, it will not equal null.

Group by has no meaning in this query, as you're not using any methods that work on groups, such as count, sum or max. If you were to do that, you'd be able to do grouping with an over statement rather than have to use a group by, which then requires you to list all non aggregate fields.