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Select Query ()

Author

Topic

paramu
Posting Yak Master

151 Posts

Posted - 2009-09-15 : 09:41:56

I have a table called "Invoice_Curs" like the following manner

Work_order Invoice_No Employee_id
10 1 200
11 1 201
12 2 300
13 3 202
14 2 203

But I need to select only single "Invoice_no" for its repeated data's
like..

work_order Invoice_no Employee_id
10 1 200
12 2 300
13 3 202

Any Ideas?
Thanks

Paramu @ PARANTHAMAN

vijayisonly
Master Smack Fu Yak Hacker

1836 Posts

Posted - 2009-09-15 : 09:46:56

try this..

select * from
(select row_number() over(partition by invoice_no order by employee_id) as rn,* from Invoice_Curs) t
where t.rn = 1

visakh16
Very Important crosS Applying yaK Herder

52326 Posts

Posted - 2009-09-16 : 13:23:33

if sql 2000 or earlier use


SELECT t.*
FROM table t
INNER JOIN (SELECT Invoice_no,MIN(Employee_id) AS FirstEmp
            FROM table
            GROUP BY Invoice_no) t1
ON t1.Invoice_no=t.Invoice_no
AND t1.FirstEmp=t.Employee_id

nirene
Yak Posting Veteran

98 Posts

Posted - 2009-09-17 : 01:23:20

Select Invoice_no,Min(Work_order) as Work_order,Min(Employee_id
) as Employee_id from Invoice_Curs Group By Invoice_No

ra.shinde
Posting Yak Master

103 Posts

Posted - 2009-09-17 : 03:39:18

quote:
Originally posted by nirene

Select Invoice_no,Min(Work_order) as Work_order,Min(Employee_id
) as Employee_id from Invoice_Curs Group By Invoice_No

This will certanly return wrong result

Rahul Shinde

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