Write a single SQL to delete duplicate records from the a
single table based on a column value. I need only Unique
records at the end of the Query.
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Answer Posted / nunna
Query to find duplicates in a table:(Custname, Prod,
Order_amt)
select custname,count(*) from sales1 a where a.rowid > ANY
(select b.rowid from sales1 b where a.custname=b.custname
and a.prod=b.prod and a.order_amt=b.order_amt) group by
custname;
Query to delete duplicates:
delete from sales1 a where a.rowid > ANY (select b.rowid
from sales1 b where a.custname=b.custname and a.prod=b.prod
and a.order_amt=b.order_amt);
| Is This Answer Correct ? | 7 Yes | 15 No |
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