Home » RDBMS Server » Server Administration » remove dupicate record
remove dupicate record [message #59432] Wed, 19 November 2003 08:08 Go to next message
Joan
Messages: 36
Registered: February 2002
Member
I have table with one column emp_no that is primary key. there some duplicate in the table and I need to remove it..Thanks

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Re: remove dupicate record [message #59433 is a reply to message #59432] Wed, 19 November 2003 08:20 Go to previous messageGo to next message
Jay
Messages: 127
Registered: October 1999
Senior Member
You may be do a SELECT first to find the duplicate records like this :
select emp_no from table_name group by emp_no having count(emp_no) > 1
then you can delete those records as you need

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Re: remove dupicate record [message #59434 is a reply to message #59432] Wed, 19 November 2003 08:49 Go to previous message
Mahesh Rajendran
Messages: 10708
Registered: March 2002
Location: oracleDocoVille
Senior Member
Account Moderator
 
the easiest methods are posted [url=http://www.orafaq.net/faqsql.htm#ONLOGON]here<a/>

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