Gurus....
1)
I am doing some data movement involving a table creation based on
another table....
create table userid.pm_stage_lg_arch tablespace user_data as select
*from userid.pm_stage_lg where
entry_timestamp<= to_date('06-feb-01 11:00:00','DD-MON-YY HH24:MI:SS');
This creates a table with 1,000,000 rows and grows my tablespace by 360
MB...
2)
I then want to delete the rows from the original table based on the same
date range.....
delete from nuserid.pm_stage_lg where entry_timestamp <=
to_date('06-feb-01 11:00:00','DD-MON-YY HH24:MI:SS');
The problem is that when I issue this statement which deletes
1,000,000 rows my rollback segments understandably grow by 600 MB...
1) Can I issue this statement without growing the rollback
segments? (no recover?)
2) Can I actually shrink the size of the rollback segments
after backing up the database?
3) As you see in the statement I am basing my select on the date which I
need to be exact...Is there a way I could do it as select sysdate-45 from
dual and have it returned in teh same format as 'DD-MON-YY HH24:MI:SS' ???
I have been trying this for a while and cant get it..
Thanks for the help. This is a DB that is limited in Hard drive space so I
need to conserve..
Scott Hahn
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Author: Scott Hahn
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