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How Can I Delete Duplicate Records Without Using ROW ID?

Updated May 18, 2018

Hello Experts,

May I know that how can i delete duplicate records without using rowid and how many ways to find duplicate records?

Kindly share your valuable views here.

Thanks in advance.

Comments

13 Oct 2015 11:29 am Jyoti Pandey Helpful Answer

You can use this query also : delete from <table1> where <key column> in (select <key column> from <table1> group by <key column> having count(*) >1)

13 Oct 2015 11:27 am Sugandh

Use simple Union clause to delete duplicate records if you do not want to use row id for eaxmple select dept no from emp union select dept no from emp.

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