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Delete Duplicate Rec

1 New Member
HI EveryOne

I am facing one prblem that is :
How can be delete duplicate records from table(Database) using query and Sub Query. If any one knows then PLz Forward me at
amit_mant@rediffmail.com
Jan 4 '07 #1
3 1956
hariharanmca
1,977 Top Contributor
HI EveryOne

I am facing one prblem that is :
How can be delete duplicate records from table(Database) using query and Sub Query. If any one knows then PLz Forward me at
amit_mant@rediffmail.com

this is the Qry to delete duplicate records from table(Database)

===================QRY======================
delete from table1 where Field1=(select field1 from table1 group by field1 having count(field1)>1)
Jan 4 '07 #2
iburyak
1,017 Recognized Expert Top Contributor
This way you will delete all records that have duplicates but if you wish to save single instance it is dangerous proposition.
Jan 4 '07 #3
hariharanmca
1,977 Top Contributor
This way you will delete all records that have duplicates but if you wish to save single instance it is dangerous proposition.

Can you explain the concept of single instance it is dangerous proposition.
Jan 5 '07 #4

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