Have A Info About How To Clean Undo Tablespace

Sql> drop tablespace undo_rbs0 including contents; If you have multiple datafiles associated with an undo tablespace, delete those first. Then you have 3599mb free to use on undo without need to expand the undo_tablespace.

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Managing Undo For Your Database

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The following statement effectively switches to a new undo tablespace:

How to clean undo tablespace. Sql> alter table wrh$_sqltext move lob (sql_text) store as tablespace sysaux; Assuming undotbs_01 is the current undo tablespace,. Assuming undotbs_01 is the current undo tablespace, after.

Sql> select tablespace_name, status, sum(blocks) * 8192/1024/1024/1024 gb from dba_undo_extents group by tablespace_name, status; Sql > select tablespace_name tablespace, status, sum (bytes) / 1024 / 1024 sum_in_mb, count (*) counts from dba_undo_extents group by tablespace_name, status order. Alter system set undo_tablespace = undotbs_02;

Undo tablespace ‘%s’ is currently in use. Alter system set undo_tablespace = undotbs_02; From a sql*plus session connected as sysdba perform the move operation as follows:

Sql> create undo tablespace undotbs2 datafile sql> '/exlibris1/oradata/aleph20/aleph20_undotbs101.dbf' size 4g; This error indicates you must wait for the. 1) create a new undo tablespace 'undotbs2' 2) alter system set undo_tablespace=undotbs2 3) wait until all pending transactions using the old undo.

First, get a list of all the datafile for your undo tablespace. To go for automatic management of undo space set the following parameter. The following statement switches to a new undo tablespace:

Undo_management string auto undo_retention integer 1800. Sql> select status,segment_name from dba_rollback_segs where status not in (offline') and tablespace_name= [undo tablespace to be dropped]; The dbms_undo_adv package provides some excellent feedback to help determine the best value for the undo_retention parameter:

Create a new undo tablespace as :