how to use distinct in innerjoin with order by

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SQL-Server-2008

i have two tables
one having primary key with columns
empid,empname
second having foreign key with columns
empid,empdoj,empclient,empstatus

foreign key table having duplicate values
i have two join two table and select distinct row using the order of emp date of joining
please help me

Posted 28-Dec-12 4:29am

Member 9576671

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Sandeep Mewara · Answer 1 · 2012-12-28T04:45:00

Solution 1

i have two join two table and select distinct row using the order of emp date of joining
Not too sure, but sounds like you need this:

SQL

SELECT 
  mstEmployees.empid,
  mstEmployeesDetails.empname,
  mstEmployeesDetails.empclient,
  mstEmployeesDetails.empstatus
FROM
  mstEmployees
INNER JOIN
  mstEmployeesDetails ON mstEmployees.empid = mstEmployeesDetails.empid 
ORDER BY
  mstEmployeesDetails.empdoj

Posted 28-Dec-12 4:45am

Sandeep Mewara

Comments

Member 9576671 28-Dec-12 21:59pm

thanks it's working but result contain duplicate values .it display max doj record only

Sandeep Mewara 29-Dec-12 2:04am

If there are any duplicate data it will display as is. It was assumed that empid was unique. Further, there is no query to get just MAX record.

Try:
SELECT
DISTINCT mstEmployees.empid,
mstEmployeesDetails.empname,
mstEmployeesDetails.empclient,
mstEmployeesDetails.empstatus
FROM
mstEmployees
INNER JOIN
mstEmployeesDetails ON mstEmployees.empid = mstEmployeesDetails.empid
ORDER BY
mstEmployeesDetails.empdoj

Member 9576671 29-Dec-12 2:29am

the above query shows error
ORDER BY items must appear in the select list if SELECT DISTINCT is specified.

Sandeep Mewara 29-Dec-12 2:34am

Yeah right. Just add 'empdoj' in your select after empstatus. You need to include it.