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Find Duplicate records in SQL table

· Database Zone

The Database Zone is brought to you in partnership with Clusterpoint.  Read about ACID-compliant Transactions Mechanism within NoSQL database from Clusterpoint.


U might have come across a situation like there are number of duplicated records in a table.

Now Its Ur duty to remove duplicacy of data from the table, So the first step would be to find out duplicate records against each column.

Suppose our tablename is masterorder with column orderid for which we are goin to find duplicate records.
SELECT orderid, COUNT(*) TotalCount
FROM masterorder
GROUP BY orderid
HAVING COUNT(*) > 1

The Database Zone is brought to you in partnership with Clusterpoint.  Read about ACID-compliant Transactions Mechanism within NoSQL database from Clusterpoint.

Topics:
database

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