WebSQL> show parameter undo NAME TYPE VALUE----- -----undo_management string AUTO undo_retention integer 900 undo_tablespace string UNDOTBS1 SQL> alter system setundo_tablespace=undotbs2; System altered.WebNov 28, 2016 · 2. Besides what cagcowboy has already posted, if your undo is constantly full and you are getting errors. Make sure that your undo is size properly and that the undo retention is set at a value that is appropriate for the size. If the undo retention is set high, you'll need more space allocated to undo to retain information for the time limit ...
Oracle shrinking / reclaiming free tablespace space
WebWhen the database instance starts, the database automatically selects the first available undo tablespace. If no undo tablespace is available, then the instance starts without an undo tablespace and stores undo records in the SYSTEM tablespace. This is not recommended, and an alert message is written to the alert log file to warn that the ...WebApr 14, 2024 · 为你推荐; 近期热门; 最新消息; 心理测试; 十二生肖; 看相大全; 姓名测试; 免费算命; 风水知识highest rated bundesliga players
ORACLE-BASE - Reclaiming Unused Space in Datafiles
WebSwitch to the new Undo tablespace. sql> alter system set undo_tablespace=UNDOTBS2 scope=both; 3. Check the status of the Undo segments in the Undo tablespace to be dropped. sql> select tablespace_name, status, count (*) from dba_rollback_segs group by tablespace_name, status;WebAn UNDO tablespace is used for implementing automatic undo management in the Oracle database. ... About this task. The Oracle database uses an UNDO tablespace for maintaining undo records, which are used to undo or roll back uncommitted changes made to the database. ... SQL> ALTER TABLESPACE ADD DATAFILE 'new_file_name' …Web9、online offline 改变表空间的状态。online使表空间创建后立即有效.这是缺省值.offline使表空间创建后无效.这个值,可以从dba_tablespace中得到。 10、PERMANENT TEMPORARY 指出表空间的属性,是永久表空间还是临时表空间。永久表空间存放的是永久对象,临时表空间 …highest rated bulk email finder