- Oracle Extend Temp Tablespace Size
- Oracle Change Temp Tablespace
- Oracle Increase Temp Tablespace Size
- How To Increase Temp Tablespace
This Oracle tutorial explains how to use the Oracle ALTER TABLESPACE statement with syntax and examples.
Description
The ALTER TABLESPACE statement is used to modify a tablespace or one of its data files or temp files. A tablespace is used to allocate space in the Oracle database where schema objects are stored.
The ALTER TABLESPACE statement is used to modify a tablespace or one of its data files or temp files. A tablespace is used to allocate space in the Oracle database where schema objects are stored. Since version 8.1.5, Oracle has provided what can be considered as a true temporary tablespace, utilizing sparse files (or, in Oracle-speak, tempfiles). These files are essentially 'anchors', at the operating system level, consuming a file name and an inode (on.nix-type operating systems) and information on how large they can grow. Temporary Tablespaces. Temporary tablespaces are used for special operations, particularly for sorting data results on disk and for hash joins in SQL. For SQL with millions of rows returned, the sort operation is too large for the RAM area and must occur on disk. The temporary tablespace is where this takes place. Sqlalter database sample default temporary tablespace group2; Any user who has not explicitly been assigned a temporary tablespace will now use tablespaces lmtemp and lmtemp2. If a tablespace group is specified as the default temporary tablespace, you cannot drop any of its member tablespaces.
Syntax
The syntax for the ALTER TABLESPACE statement in Oracle/PLSQL is:
Parameters or Arguments
- tablespace_name
- The name of the tablespace to remove from the Oracle database.
- storage_clause
- The syntax for the the storage_clause is:
- file_specification
- The syntax for the file_specification is:
Oracle Extend Temp Tablespace Size
Example - Rename Datafile
Let's look at an ALTER TABLESPACE statement that renames a datafile associated with a tablespace.
For example:
Oracle Change Temp Tablespace
This ALTER TABLESPACE statement would take the tablespace offline, rename the datafile from tbl_perm_01.dat to tbl_perm_01_new.dat, and then bring the tablespace back online again.
Example - Add Datafile
Let's look at an ALTER TABLESPACE statement that adds a datafile to a tablespace.
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This ALTER TABLESPACE statement add the datafile called tbs_perm_02.dat to the tbs_perm_02 tablespace.
Example - Drop Datafile
Let's look at an ALTER TABLESPACE statement that drops a datafile from a tablespace.
For example:
This ALTER TABLESPACE statement drops the datafile called tbs_perm_03.dat to the tbs_perm_03 tablespace.
Example - Add Tempfile
- tablespace_name
- The name of the tablespace to remove from the Oracle database.
- storage_clause
- The syntax for the the storage_clause is:
- file_specification
- The syntax for the file_specification is:
Oracle Extend Temp Tablespace Size
Example - Rename Datafile
Let's look at an ALTER TABLESPACE statement that renames a datafile associated with a tablespace.
For example:
Oracle Change Temp Tablespace
This ALTER TABLESPACE statement would take the tablespace offline, rename the datafile from tbl_perm_01.dat to tbl_perm_01_new.dat, and then bring the tablespace back online again.
Example - Add Datafile
Let's look at an ALTER TABLESPACE statement that adds a datafile to a tablespace.
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This ALTER TABLESPACE statement add the datafile called tbs_perm_02.dat to the tbs_perm_02 tablespace.
Example - Drop Datafile
Let's look at an ALTER TABLESPACE statement that drops a datafile from a tablespace.
For example:
This ALTER TABLESPACE statement drops the datafile called tbs_perm_03.dat to the tbs_perm_03 tablespace.
Example - Add Tempfile
Let's look at an ALTER TABLESPACE statement that adds a tempfile to a tablespace.
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This ALTER TABLESPACE statement add the tempfile called tbs_temp_04.dat to the tbs_temp_04 tablespace.
Example - Drop Tempfile
Let's look at an ALTER TABLESPACE statement that drops a tempfile from a tablespace. Edius pro 7.5.
Oracle Increase Temp Tablespace Size
For example:
How To Increase Temp Tablespace
This ALTER TABLESPACE statement drops the tempfile called tbs_temp_05.dat to the tbs_temp_05 tablespace.
