Oracle 11G SQL Command Syntax to Check Free Space, Shrink Temporary Tablespace or Tempfile

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1. SQL Command to Check Free Space in Temporary table space.

SQL> select tablespace_name ,ALLOCATED_SPACE/1024/1024/1024 allocatedGB,    FREE_SPACE/1024/1024/1024 FreeGB, TABLESPACE_SIZE/1024/1024/1024 TABLESPACEGB   from dba_temp_free_space;

TABLESPACE_NAME                ALLOCATEDGB     FREEGB TABLESPACEGB

------------------------------ ----------- ---------- ------------

TEMP                                    14 13.9980469           14

2. SQL Command to switch off the autoextend option for tempfile

alter database tempfile '/u01/app/oracle/oradata/testdb/temp01.dbf' autoextend off;

3. SQL command to resize a tempfile

alter database tempfile '/u01/app/oracle/oradata/testdb/temp01.dbf' resize 14g;

4. SQL Command to shrink temporary tablespace with minimum size

Alter tablespace temp shrink space keep 1g;

5. SQL Command to shrink tempfile

Alter tablespace temp shrink tempfile '/u01/app/oracle/oradata/testdb/temp01.dbf' keep 1g;

6. SQL Command to shrink temporary tablespace without minimum limit.

Alter tablespace temp shrink space;

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