How to delete duplicate records from a table?(for suppose in
a table we have 1000 Records in that we have 200 duplicate
Records , so ,how to findout that duplicate Records , how to
delete those Records and arranged into sequence order? one
more thing that there is no primary key at all)
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Answer Posted / pooja narang
We will get the duplicate records and insert them into a
new temp table by using below query:
select * into tmp_Employee
from Employee
having count(distinct *) > 1
Now delete the duplicate records from Employee table:
delete from Employee
having count(distinct *) > 1
Now insert the records from tmp_Employee to Employee table:
insert into Employee
select * from tmp_employee
drop table tmp_employee
| Is This Answer Correct ? | 4 Yes | 15 No |
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