Basic Oracle Concepts and Programming Question:
How To Bring a Tablespace Online?
Answer:
If you have brought a tablespace offline, now you want to make it available to users again, you can use the ALTER TABLESPACE ... ONLINE statement as shown in the following script:
SQL> connect HR/globalguideline
SQL> CREATE TABLESPACE my_space
2 DATAFILE '/temp/my_space.dbf' SIZE 10M;
Tablespace created.
SQL> ALTER TABLESPACE my_space OFFLINE NORMAL;
Tablespace altered.
...
SQL> ALTER TABLESPACE my_space ONLINE;
Tablespace altered.
SQL> connect HR/globalguideline
SQL> CREATE TABLESPACE my_space
2 DATAFILE '/temp/my_space.dbf' SIZE 10M;
Tablespace created.
SQL> ALTER TABLESPACE my_space OFFLINE NORMAL;
Tablespace altered.
...
SQL> ALTER TABLESPACE my_space ONLINE;
Tablespace altered.
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