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How to retrieve duplicate rows in a table?
How to delete the duplicate entries in a table?
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Answer Posted / anoop rajan
Tbale emp had some duplicate entries and i wanted to retain
the first of all duplicates, the others could be deleted as
follows . Please give your comments if this is the most
optimum way :
delete from emp where rowid in
(select rowid from emp o where rowid !=
(select min(rowid) from emp i where i.empno=o.empno));
| Is This Answer Correct ? | 0 Yes | 3 No |
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