Can I resize the SYSTEM tablespace?

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Can I resize the SYSTEM tablespace?

Can I resize the SYSTEM tablespace?

My system tablespace was increasing day by day. It has gone up to 8 GB. Then I truncated AUD$ table and disabled auditing because the system tablespace was increasing.

Now my system tablespace is 8 GB and free space is 7 GB dba_free_space. When I try to resize the system tablepspace datafile by altering the database datafile resize, I receive the error :ORA 03297 file contains used data beyond resize value. Can you help me to resize the system tablespace? Critical production database is 350 GB.

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The SYSTEM tablespace is one of the few that you cannot reclaim space from. A rebuild of the database is required. This is why many move the SYS.AUD$ table to another tablespace before turning on auditing.

To be honest, I wouldn't worry about the extra space. As the saying goes today, "disk is cheap." And your system tablespace is less than 3% of your total database size. I would probably just leave things alone until I had a better reason to rebuild the database.

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This was first published in June 2008

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