OT My weekly tip: how to execute several appends without commit
- From: "Juan Cachito Reyes Pacheco" <jreyes@xxxxxxxxxxxxxxxx>
- To: <oracle-l@xxxxxxxxxxxxx>
- Date: Mon, 12 Apr 2004 13:35:35 -0400
Tom Kyte gave a good idea to do several inserts in a table, based on
distinct state in tables
without doing a commit.
For example
/*+append */ insert into a select * from b
(several process modify b) then
/*+append */ insert into a select * from b
The solution is very simple
(initial situation)
SELECT DBMS_FLASHBACK.GET_SYSTEM_CHANGE_NUMBER into nscn FROM DUAL;
(several process modify b) then
/*+append */ insert into a
select * from b AS OF SCN nscn
union all
select * from b
I think this is the science of the obvious.
Juan Carlos Reyes Pacheco
OCP
Database 9.2 Standard Edition
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