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database

Find Duplicate records in SQL table


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
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