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Creation of TABLESPACE on ORACLE 10g..


Concept:

  • An Oracle database consists of one or more logical storage units called tablespaces, which collectively store all of the database's data.

  • Each tablespace in an Oracle database consists of one or more files called datafiles, which are physical structures that conform to the operating system in which Oracle is running.

  • A database's data is collectively stored in the datafiles that constitute each tablespace of the database. For example, the simplest Oracle database would have one tablespace and one datafile. Another database can have three tablespaces, each consisting of two datafiles (for a total of six datafiles).


SYNTAX:-

CREATE SMALLFILE/BIGFILE TABLESPACE <TSPACE_NAME>
DATAFILE '<PHYSICAL_LOCATION\FILE_NAME>'
SIZE <FILE_SIZE>[M/K/G/T]
AUTOEXTEND ON/OFF {Note: If On}
                        NEXT <INCREASE_SIZE>[M/K/G/T]  MAXSIZE  <FILE_SIZE>[M/K/G/T]

LOGGING EXTENT MANAGEMENT
LOCAL SEGMENT SPACE MANAGEMENT AUTO 



EXAMPLE:-

CREATE SMALLFILE TABLESPACE "ECHO_HOME_DB"
DATAFILE 'H:\APP\ECLIPSE\ORADATA\ORCL\ECHO_HOME_DB_FILE'
SIZE 50M
AUTOEXTEND ON
NEXT 1M
MAXSIZE 500M
LOGGING EXTENT MANAGEMENT
LOCAL SEGMENT SPACE MANAGEMENT AUTO
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