How To Bring a Tablespace Offline

Q

How To Bring a Tablespace Offline? - Oracle DBA FAQ - Managing Oracle Tablespaces and Data Files

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A

If you want to stop users using a tablespace, you can bring it offline using the ALTER TABLESPACE ... OFFLINE statement as shown in the following script:

SQL> connect HR/fyicenter
Connected.

SQL> CREATE TABLESPACE my_space 
  2  DATAFILE '/temp/my_space.dbf' SIZE 10M;
Tablespace created.

SQL> ALTER TABLESPACE my_space OFFLINE NORMAL;
Tablespace altered.

After bringing a tablespace offline, you can backup or rename the data file safely.

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