Topic: Database Administration >> SCN(system change number),log sequence number
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| Title: SCN(system change number),log sequence number |
| INSTANCE |
Posted: Jul 26, 2007 07:26:10 AM |
Total Post: 7
Joined: Jul, 2007
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Hi
what is SCN(system change number),log sequence number.....
how it is useful.....
wt they do...
Thanks and Regards.
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 Mohammed Taj |
| Posted: Jul 29, 2007 09:58:25 AM |  |
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Total Post: 694
Joined: Jul, 2007
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Hi,
Sequence change number : SCN is ever increase number in database.
it is use for "flashback table ... scn"
it is age of database.
through SCN number you can recover your data from back.
SQL> select dbms_flashback.get_system_change_number from dual;
GET_SYSTEM_CHANGE_NUMBER
------------------------
1387492
Regards
Taj
http://dbataj.blogspot.com
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