How to extend rollback segment in oracle?
You can chang the maxextents via: alter rollback segment rbs2 storage ( maxextents N ); if you are going to change next, you could: alter rollback segment rbs2 storage ( next 524288 );
How do I change a rollback segment?
You must have the ALTER ROLLBACK SEGMENT system privilege. Specify the name of an existing rollback segment. Specify ONLINE to bring the rollback segment online. When you create a rollback segment, it is initially offline and not available for transactions.
How do I extend a rollback segment?
To create additional rollback segments for a database, use either the Create Rollback Segment property sheet of Enterprise Manager, or the SQL command CREATE ROLLBACK SEGMENT. The tablespace to contain the new rollback segment must be online.
How do I change undo management to auto?
To change to automatic undo management, you must first create an undo tablespace and then change the UNDO_MANAGEMENT initialization parameter to AUTO .
Why do I get ora-01562 failed to extend segment number?
Once in a while I am getting ORA-01562: failed to extend rollback segment number error and it is not for a particular row, nor for a particular file. The error is random. This is happening on production system. And the MAXEXTENTS for that table is already set to UNLIMITED .
Why is ora-1562 unable to extend rollback segment?
The 0RA-1562 is often followed by another error which indicates the cause of the failure. For example, ORA-1650. Cause: Failed to allocate extent for the rollback segment in tablespace. Action: Use the ALTER TABLESPACE ADD DATAFILE statement to add one or more files to the specified tablespace.
What is the error code for ora-1562?
The 0RA-1562 is often followed by another error which indicates the cause of the failure. For example, ORA-1650. Error: ORA 1650 Text: unable to extend rollback segment by in tablespace
Why is the alter rollback segment not working?
Cause: Failure occurred when trying to extend rollback segment Action: This is normally followed by another error message that caused the failure. You may take the rollback segment offline to perform maintenance. Use the alter rollback segment offline command to take the rollback segment offline.