RE: Another 11g enigma
- From: "Dunbar, Norman (Capgemini)" <norman.dunbar.capgemini@xxxxxxxxxxxxxxxxxxxxxxxxx>
- To: <maureen.english@xxxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 25 Aug 2011 09:16:11 +0100
Morning Maureen,
>> We clone our production database to another database about 3
>> times a year.
>> ...
>> Basically, we just copy the data files and log files to the
>> new location,
>> rename them because they all contain the database SID in
>> their name, create
>> a new parameter file and control files and voila, we have a
>> copy of the database.
When you say "we rename them" how exactly do you do this? I'm hoping you
physically rename the files on the OS, and then:
startup mount
alter database rename file 'old log_file name' to 'new log_file name';
...
alter database rename file 'old data_file name' to 'new data_file name';
...
alter database open;
(Although to rename a data file, the database can already be open.)
The above sets up the control file properly. If this is a clone to the
same server, I remember (back at 8.0/8i) having a clone problem whereby
if the original database was up, I couldn't get the clone to start as
some file or other (sorry, I forget which) was "already in use". Closing
the original and starting the clone, then starting the original worked
fine. I haven't cloned in this manner since then though - I use RMAN
these days.
Cheers,
Norm.
Norman Dunbar
Contract Senior Oracle DBA
Capgemini Database Team (EA)
Internal : 7 28 2051
External : 0113 231 2051
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Other related posts:
- » Another 11g enigma- Maureen English
- » RE: Another 11g enigma - Dunbar, Norman (Capgemini)
