The method of creating a tablespace in Oracle

2 years ago
Isabella Edwards
2 minutes

To create a tablespace in Oracle, you can use the following method:

  1. Create a tablespace using the CREATE TABLESPACE statement. The syntax is as follows:
CREATE TABLESPACE tablespace_name
DATAFILE 'file_name' SIZE file_size
[EXTENT MANAGEMENT LOCAL]
[SEGMENT SPACE MANAGEMENT {MANUAL | AUTO}];

tablespace_name is the name of the tablespace to be created, file_name is the name of the data file, and file_size is the size of the data file. The ‘EXTENT MANAGEMENT LOCAL’ specifies the allocation method for the tablespace as local management, ‘SEGMENT SPACE MANAGEMENT’ specifies the segment space management method for the tablespace, which can be either MANUAL or AUTO.

  1. To create a large file tablespace, use the CREATE BIGFILE TABLESPACE statement. This type of tablespace allows for larger data files. The syntax is as follows:
CREATE BIGFILE TABLESPACE tablespace_name
DATAFILE 'file_name' SIZE file_size
[EXTENT MANAGEMENT LOCAL]
[SEGMENT SPACE MANAGEMENT {MANUAL | AUTO}];
  1. The CREATE UNDO TABLESPACE statement is used to create a undo tablespace, which is used to store undo segments for transaction rollback and recovery. The syntax is as follows:
CREATE UNDO TABLESPACE tablespace_name
DATAFILE 'file_name' SIZE file_size
[EXTENT MANAGEMENT LOCAL]
[SEGMENT SPACE MANAGEMENT {MANUAL | AUTO}];
  1. Create a temporary tablespace using the CREATE TEMPORARY TABLESPACE statement. Temporary tablespaces are used to store data for temporary tables and sorting operations. The syntax is as follows:
CREATE TEMPORARY TABLESPACE tablespace_name
TEMPFILE 'file_name' SIZE file_size
[EXTENT MANAGEMENT LOCAL]
[SEGMENT SPACE MANAGEMENT {MANUAL | AUTO}];

The above is the basic method for creating a tablespace, with the specific syntax and parameters adjusted according to actual needs.

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