What is SYSTEM tablespace and when is it created?

What is SYSTEM tablespace and when is it created?
by

1 Answer

Answer :

Every Oracle database contains a tablespace named SYSTEM, which is
automatically created when the database is created. The SYSTEM
tablespace always contains the data dictionary tables for the entire
database.
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Related questions

Name a tablespace automatically created when you create a database.

Description : Name a tablespace automatically created when you create a database.

Last Answer : The SYSTEM tablespace.

Can one rename a tablespace? (for DBA)

Description : Can one rename a tablespace? (for DBA)

Last Answer : No, this is listed as Enhancement Request 148742. Workaround: Export all of the objects from the tablespace Drop the tablespace including contents Recreate the tablespace Import the objects

What view would you use to determine free space in a tablespace?

Description : What view would you use to determine free space in a tablespae?

Last Answer : DBA_FREE_SPACE

How do you add a data file to a tablespace

Description : How do you add a data file to a tablespace

Last Answer : ALTER TABLESPACE ADD DATAFILE SIZE

What is the difference between a TEMPORARY tablespace and a PERMANENT tablespace?

Description : What is the difference between a TEMPORARY tablespace and a PERMANENT tablespace?

Last Answer : A temporary tablespace is used for temporary objects such as sort structures while permanent tablespaces are used to store those objects meant to be used as the true objects of the database.

What does coalescing a tablespace do?

Description : What does coalescing a tablespace do?

Last Answer : Coalescing is only valid for dictionary-managed tablespaces and de- fragments space by combining neighboring free extents into large single extents.

Which parameter specified in the DEFAULT STORAGE clause of CREATE TABLESPACE cannot be altered after creating the tablespace?

Description : Which parameter specified in the DEFAULT STORAGE clause of CREATE TABLESPACE cannot be altered after creating the tablespace?

Last Answer : All the default storage parameters defined for the tablespace can be changed using the ALTER TABLESPACE command. When objects are created their INITIAL and MINEXTENS values cannot be changed.

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Last Answer : Unlike normal tablespaces, true temporary tablespace information is not listed in DBA_FREE_SPACE. Instead use the V$TEMP_SPACE_HEADER view: SELECT tablespace_name, SUM (bytes used), SUM (bytes free) FROM V$temp_space_header GROUP BY tablespace_name;

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Description : What is Tablespace Quota ?

Last Answer : The collective amount of disk space available to the objects in a schema on a particular tablespace.

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Last Answer : The Tablespace to contain schema objects created without specifying a tablespace name.

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Description : How does one prevent tablespace fragmentation? (for DBA)

Last Answer : Always set PCTINCREASE to 0 or 100. Bizarre values for PCTINCREASE will contribute to fragmentation. For example if you set PCTINCREASE to 1 you will see that your extents are going to have weird and ... /O may be required to fetch the additional blocks where extent maps of the segment are stored.

What is a Tablespace?

Description : What is a Tablespace?

Last Answer : A database is divided into Logical Storage Unit called tablespaces. A tablespace is used to grouped related logical structures together

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Description : Explain the relationship among Database, Tablespace and Data file.?

Last Answer : Each databases logically divided into one or more tablespaces one or more data files are explicitly created for each tablespace

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Last Answer : Yes.

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Last Answer : Yes.

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In SQL, the CREATE TABLESPACE isused A. to createa place in the databasefor storageof scheme objects, rollback segments, andnaming the data files to comprise the tablespace B. to createa database trigger C. to add/rename data files, to change storage D. All of theabove E. None of the above

Description : In SQL, the CREATE TABLESPACE isused A. to createa place in the databasefor storageof scheme objects, rollback segments, andnaming the data files to comprise the tablespace B. to createa database trigger C. to add/rename data files, to change storage D. All of theabove E. None of the above

Last Answer : to createa place in the databasefor storageof scheme objects, rollback segments, andnaming the data files to comprise the tablespace

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Description : Can you increase the size of a tablespace ? How ?

Last Answer : Yes, by adding datafiles to it.

What is a Tablespace?

Description : What is a Tablespace?

Last Answer : A database is divided into Logical Storage Unit called tablespaces. A tabl

Explain the relationship among Database, Tablespace and Data file.?

Description : Explain the relationship among Database, Tablespace and Data file.?

Last Answer : Each databases logically divided into one or more tablespaces one or more data files are explicitly created for each tablespace

Can a Tablespace hold objects from different Schemes?

Description : Can a Tablespace hold objects from different Schemes?

Last Answer : Yes.

Which parameter specified in the DEFAULT STORAGE clause of CREATE TABLESPACE cannot be altered after creating the tablespace?

Description : Which parameter specified in the DEFAULT STORAGE clause of CREATE TABLESPACE cannot be altered after creating the tablespace?

Last Answer : All the default storage parameters defined for the tablespace can be changed using the ALTER TABLESPACE command. When objects are created their INITIAL and MINEXTENS values cannot be changed.

How can you increase the capacity of an Oracle tablespace? Note: there are 2 correct answers in this question A. Resize the existing data file B. Add a new data file to the existing tablespace C. Enable compression of backup data using Oracle advanced compression D. Increase the value of the database parameter DB_BLOCK_SIZE

Description : How can you increase the capacity of an Oracle tablespace? Note: there are 2 correct answers in this question A. Resize the existing data file B. Add a new data file to ... compression of backup data using Oracle advanced compression D. Increase the value of the database parameter DB_BLOCK_SIZE

Last Answer : B. Add a new data file to the existing tablespace

The value recorded in system.last_record variable is of type

Description : The value recorded in system.last_record variable is of type

Last Answer : a. Number b. Boolean c. Character. ? b. Boolean.