[Installing Oracle DataBase Server 11.2.0.3 on Oracle Linux 6.3]: Extending Tablespaces (Creating Additional Files for Tablespaces)

$ sqlplus / as sysdba

View which data files are used by the database and where they are located:

SQL> set linesize 200;
SQL> set pagesize 0;
SQL> col name format a40;
SQL> SELECT file#, name, status
FROM v$datafile;

1. Creating a new tablespace for indexes and data:

   SQL> CREATE TABLESPACE “MY_DATA” DATAFILE ‘/u02/oradata/ora112/my_data01.dbf’ SIZE 2G AUTOEXTEND OFF;

If necessary, you can add additional space for data (when needed) with the following commands:

SQL> ALTER TABLESPACE "MY_DATA"
ADD DATAFILE  '/u02/oradata/ora112/my_data02.dbf' SIZE 2G AUTOEXTEND OFF;

SQL> CREATE TABLESPACE "MY_INDEXES"
DATAFILE '/u02/oradata/ora112/my_indexes01.dbf' SIZE 2G AUTOEXTEND OFF;

If necessary, you can add additional space for indexes (when needed) with the following commands:

SQL> ALTER TABLESPACE "MY_INDEXES"
ADD DATAFILE  '/u02/oradata/ora112/my_indexes02.dbf' SIZE 2G AUTOEXTEND OFF;

1. Sometimes you need to create an additional undo tablespace.

   SQL> CREATE undo tablespace “UNDO” datafile ‘/u02/oradata/ora112/undo01.dbf’ size 1G autoextend off;

Set the created tablespace as the default tablespace

SQL> ALTER SYSTEM SET UNDO_TABLESPACE = "UNDO";

Delete the old tablespace

SQL> drop tablespace UNDOTBS1;

1. Creating a new temporary tablespace.

   SQL> CREATE TEMPORARY TABLESPACE “MY_TEMP” TEMPFILE ‘/u02/oradata/ora112/my_temp01.dbf’ SIZE 2G AUTOEXTEND OFF;

Add an additional file for temporary tablespaces.

SQL> ALTER TABLESPACE "MY_TEMP"
ADD TEMPFILE '/u02/oradata/ora112/my_temp02.dbf' SIZE 2G AUTOEXTEND OFF;

SQL> quit