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Question Question To remove the duplicate records?Give explanetion
Answer Answer

we use DISTINCT key word in SELECT statement to remove the duplicate records.

Answered By: Ramachandra    Date: 11/11/2007

delete from where rowid NOT IN (select min(rowid) from GROUP BY col1,col2,col3,,etc.

Answered By: Nageswara Rao    Date: 12/13/2007

set rowcount 1 delete emp where ename = "xyz" set rowcount 0

Answered By: saritha    Date: 12/13/2007

firstly we need to create a duplicate table without any records (tab 1) & then retrieve distinct records from the old table & then insert them into the new table.

Answered By: Ronak A. Shah    Date: 1/1/2008

to delete duplicate rows ------------------------ DELETE FROM table_name WHERE rowid not in(SELECT MIN(rowid) FROM table_name GROUP BY column1, column2, column3..;

Answered By: Shiva    Date: 1/20/2008

To Delete duplicate rows in a table use this query Delete * from Tablename where empid in ( select * from Tablename group by empid having count(empid)>1)

Answered By: Soujanya    Date: 2/26/2008

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