Easy way:
delete from table where rowid not in (select max(rowid) from table group by
PK);
Complicated way:
Alter table mytab enable constraint PK exceptions into exceptions;
Then, you should see how many rows are duplicated and use the method 1
on that set of rowids. If the table in question is a multi-gigabyte table
and the number of rows is relatively small, then the second method is
much, much faster.
--
Mladen Gogala
Oracle DBA
> -----Original Message-----
> From: ml-errors_at_fatcity.com [mailto:ml-errors_at_fatcity.com] On
> Behalf Of Johan Muller
> Sent: Friday, September 19, 2003 3:05 PM
> To: Multiple recipients of list ORACLE-L
> Subject: PL/SQL Question:Eliminate duplicate rows
>
>
> Looking for an a sample cursor routine to load a PK enabled
> table to eliminate any dupes from the load table.
>
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Received on Fri Sep 19 2003 - 15:09:46 CDT
