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ALTER TABLESPACE → Purpose Use the ALTER TABLESPACE statement to alter an existing tablespace or one or more of its … datafiles or tempfiles. You cannot use this statement to convert a dictionary-managed tablespace to a … locally managed tablespace. For that purpose, use the DBMS_SPACE_ADMIN package, which is documented … Guide
DROP TABLESPACE → Purpose Use the DROP TABLESPACE statement to remove a tablespace from the database. When you drop a … tablespace, Oracle Database does not place it in the recycle bin. Therefore, you cannot … subsequently either purge or undrop the tablespace. See Also: CREATE TABLESPACE and ALTER TABLESPACE
CREATE TABLESPACE → Purpose Use the CREATE TABLESPACE statement to create a tablespace, which is an allocation of space … in the database that can contain schema objects. A permanent tablespace contains persistent schema … objects. Objects in permanent tablespaces are stored in datafiles. An undo tablespace is a type of … permanent
Example 3: Displaying Statistics for Free Space (Extents) of Each Tablespace → To produce statistics about free extents and coalescing activity for each tablespace in the … database, enter the following query: SELECT TABLESPACE_NAME \"TABLESPACE\", FILE_ID, COUNT(*) \"PIECES … DBA_FREE_SPACE GROUP BY TABLESPACE_NAME, FILE_ID; TABLESPACE FILE_ID PIECES MAXIMUM MINIMUM AVERAGE … PIECES shows the number of
Monitoring Occupants of the SYSAUX Tablespace → The list of registered occupants of the SYSAUX tablespace are discussed in \"About the SYSAUX … Tablespace\". These components can use the SYSAUX tablespace, and their installation provides the means … of establishing their occupancy of the SYSAUX tablespace. You can monitor the occupants of the SYSAUX … tablespace
Bringing Tablespaces Online → You can bring any tablespace in an Oracle Database online whenever the database is open. A … tablespace is normally online so that the data contained within it is available to database users. If a … tablespace to be brought online was not taken offline \"cleanly\" (that is, using the NORMAL clause of … the ALTER TABLESPACE
Example 2: Listing the Datafiles and Associated Tablespaces of a Database → To list the names, sizes, and associated tablespaces of a database, enter the following query on the DBA_DATA_FILES view: SELECT FILE_NAME, BLOCKS, TABLESPACE_NAME FROM DBA_DATA_FILES; FILE_NAME BLOCKS TABLESPACE_NAME ------------ ---------- ------------------- /U02/ORACLE/IDDB3/DBF/RBS01.DBF 1536 RBS /U02/ORACLE/IDDB3/DBF/SYSTEM01.DBF 6586 SYSTEM /U02/ORACLE/IDDB3/DBF/TEMP01.DBF 6400 TEMP /U02/ORACLE/IDDB3/DBF/TESTTBS01.DBF
Altering Tablespace Availability → You can take an online tablespace offline so that it is temporarily unavailable for general use … bring an offline tablespace online to make the schema objects within the tablespace available to … database users. The database must be open to alter the availability of a tablespace. To alter the … availability of
Controlling the Size of the SYSAUX Tablespace → The SYSAUX tablespace is occupied by a number of database components (see Table 2-2 ), and its … workload. The largest portion of the SYSAUX tablespace is occupied by the Automatic Workload … SYSAUX tablespace based on the system configuration and expected load. Parameter/Recommendation … of the SYSAUX tablespace
Managing Tablespace Alerts → managed tablespace —When you create a new locally managed tablespace, it is assigned the default … later in this section. Dictionary managed tablespace —When you create a new dictionary managed … tablespace, it is assigned the threshold values that Enterprise Manager lists for \"All others\" in the … metrics categories
Viewing Alerts → Viewing A lerts You view alerts by accessing the home page of Enterprise Manager Database Control. Description of the illustration alerts_tablespace_full.gif You can also view alerts for locally managed tablespaces with the DBA_OUTSTANDING_ALERTS view. See \"Server-Generated Alerts Data Dictionary Views\" for more information.
Limitations → for such tablespaces after they become read/write or available. When you take a tablespace offline … or put it in read-only mode, you should disable the alerts for the tablespace by setting the … thresholds to zero. You can then reenable the alerts by resetting the thresholds when the tablespace is once … reclaim space that is
Example 1: Listing Tablespaces and Default Storage Parameters → following query on the DBA_TABLESPACES view: SELECT TABLESPACE_NAME \"TABLESPACE\", INITIAL_EXTENT … FROM DBA_TABLESPACES; TABLESPACE INITIAL_EXT NEXT_EXT MIN_EXT MAX_EXT PCT_INCREASE
Moving Occupants Out Of or Into the SYSAUX Tablespace → tablespace, you can use the move procedure for that component, as specified in the V$SYSAUX_OCCUPANTS … default tablespace, which is SYSAUX. Later you discover that Ultra Search is using up too much space. To … $SYSAUX_OCCUPANTS view to relocate Ultra Search to another tablespace. The move procedure also lets you … move a component
Tablespace Data Dictionary Views → tablespaces of a database. View Description V$TABLESPACE Name and number of all tablespaces from the … . DBA_TABLESPACE_GROUPS Displays the tablespace groups and the tablespaces that belong to them. DBA_SEGMENTS … . DBA_TEMP_FREE_SPACE Displays the total allocated and free space in each temporary tablespace. V$DATAFILE … Information
Managing the SYSAUX Tablespace → The SYSAUX tablespace was installed as an auxiliary tablespace to the SYSTEM tablespace when you … now occupy the SYSAUX tablespace. If the SYSAUX tablespace becomes unavailable, core database … functionality will remain operational. The database features that use the SYSAUX tablespace
Taking Tablespaces Offline → You may want to take a tablespace offline for any of the following reasons: To make a portion of … offline tablespace backup (even though a tablespace can be backed up while online and in use) To make … application To rename or relocate tablespace datafiles See \"Renaming and Relocating Datafiles\" for … details.
Setting Alert Thresholds → Setting Alert Thresh olds For each tablespace, you can set just percent-full thresholds, just free … —Locally Managed Tablespace The following example sets the free-space-remaining thresholds in the USERS … tablespace to 10 MB (warning) and 2 MB (critical), and disables the percent-full thresholds. BEGIN … operator, OPERATOR_GE.
Creating a Bigfile Tablespace → To create a bigfile tablespace, specify the BIGFILE keyword of the CREATE TABLESPACE statement … ( CREATE BIGFILE TABLESPACE...). Oracle Database automatically creates a locally managed tablespace … statement is the same as for the CREATE TABLESPACE statement, but you can only specify one datafile. For
Altering a Bigfile Tablespace → Two clauses of the ALTER TABLESPACE statement support datafile transparency when you are using … tablespace to an absolute size, without referring to the datafile. For example: ALTER TABLESPACE bigtbs … RESIZE 80G; AUTOEXTEND (used outside of the ADD DATAFILE clause): With a bigfile tablespace, you can … use the
Creating a Tablespace Group → You create a tablespace group implicitly when you include the TABLESPACE GROUP clause in the CREATE … TEMPORARY TABLESPACE or ALTER TABLESPACE statement and the specified tablespace group does not … those groups, each of which has only the specified tablespace as a member: CREATE TEMPORARY
Dropping an Undo Tablespace → Use the DROP TABLESPACE statement to drop an undo tablespace. The following example drops the undo … tablespace undotbs_01: DROP TABLESPACE undotbs_01; An undo tablespace can only be dropped if it is … not currently used by any instance. If the undo tablespace contains any outstanding
CREATE UNDO TABLESPACE: Example → The following example creates an undo tablespace named undotbs_1 with a datafile in the directory … /u01/oradata. The datafile for the undo tablespace is 100 MB and is autoextensible with an unlimited … UNDO TABLESPACE undotbs_1; See Also: Oracle Database SQL Language Reference for a description of the CREATE UNDO TABLESPACE
ALTER TABLESPACE: Example → This example adds an Oracle-managed autoextensible datafile to the tbs_1 tablespace. The datafile … statement is entered at the SQL prompt: SQL> ALTER TABLESPACE tbs_1 ADD DATAFILE AUTOEXTEND ON MAXSIZE 800M … ; See Also: Oracle Database SQL Language Reference for a description of the ALTER TABLESPACE statement
Altering an Undo Tablespace → Undo tablespaces are altered using the ALTER TABLESPACE statement. However, since most aspects of … attributes you are permitted to alter. If an undo tablespace runs out of space, or you want to prevent … adds another datafile to undo tablespace undotbs_01: ALTER TABLESPACE undotbs_01 ADD DATAFILE '/u01 … Database
Creating an Undo Tablespace → Although Database Configuration Assistant (DBCA) automatically creates an undo tablespace for new … create an undo tablespace. There are two methods of creating an undo tablespace. The first method creates … the undo tablespace when the CREATE DATABASE statement is issued. This occurs when you are creating … =
About the SYSAUX Tablespace → The SYSAUX tablespace is always created at database creation. The SYSAUX tablespace serves as an … auxiliary tablespace to the SYSTEM tablespace. Because it is the default tablespace for many Oracle … of tablespaces required by the database. It also reduces the load on the SYSTEM tablespace.
CREATE TEMPORARY TABLESPACE: Example → creates a tablespace named temptbs_1 with a tempfile in that location. The tempfile is 100 MB and is … /oradata'; SQL> CREATE TEMPORARY TABLESPACE temptbs_1; See Also: Oracle Database SQL Language Reference for a description of the CREATE TABLESPACE statement
Identifying a Bigfile Tablespace → The following views contain a BIGFILE column that identifies a tablespace as a bigfile tablespace … : DBA_TABLESPACES USER_TABLESPACES V$TABLESPACE You can also identify a bigfile tablespace by the
CREATE TABLESPACE: Examples → Database SQL Language Reference for a description of the CREATE TABLESPACE statement CREATE … TABLESPACE: Example 1 The following example sets the default location for datafile creations to /u01 … /oradata and then creates a tablespace tbs_1 with a datafile in that location. The datafile is 100 MB and … /oradata'; SQL> CREATE
Migrating the SYSTEM Tablespace to a Locally Managed Tablespace → Use the DBMS_SPACE_ADMIN package to migrate the SYSTEM tablespace from dictionary-managed to … : The database has a default temporary tablespace that is not SYSTEM. There are no rollback segments in … the dictionary-managed tablespace. There is at least one online rollback segment in a locally … managed tablespace,
Assigning a Tablespace Group as the Default Temporary Tablespace → Use the ALTER DATABASE...DEFAULT TEMPORARY TABLESPACE statement to assign a tablespace group as the … default temporary tablespace for the database. For example: ALTER DATABASE sample DEFAULT TEMPORARY … TABLESPACE group2; Any user who has not explicitly been assigned a temporary tablespace will now
Specifying the Default Tablespace Type → The SET DEFAULT...TABLESPACE clause of the CREATE DATABASE statement to determines the default type … of tablespace for this database in subsequent CREATE TABLESPACE statements. Specify either SET … DEFAULT BIGFILE TABLESPACE or SET DEFAULT SMALLFILE TABLESPACE. If you omit this clause, the default is
Overriding the Default Tablespace Type → The SYSTEM and SYSAUX tablespaces are always created with the default tablespace type. However, you … can explicitly override the default tablespace type for the UNDO and DEFAULT TEMPORARY tablespace … during the CREATE DATABASE operation. For example, you can create a bigfile UNDO tablespace in a … database with
Limitations on Transportable Tablespace Use → tablespace to a target database in which a tablespace with the same name already exists. However, you can … rename either the tablespace to be transported or the destination tablespace before the transport … tablespace set. Encrypted tablespaces have the following the limitations: Before transporting
Creating a Bigfile Temporary Tablespace → the CREATE BIGFILE TEMPORARY TABLESPACE statement to create a single-tempfile tablespace. See the … sections \"Creating a Bigfile Tablespace\" and \"Altering a Bigfile Tablespace\" for information about
Making a Tablespace Read-Only → TABLESPACE statement to change a tablespace to read-only. You must have the ALTER TABLESPACE or MANAGE … TABLESPACE system privilege. Before you can make a tablespace read-only, the following conditions must be … met. The tablespace must be online. This is necessary to ensure that there
Assigning Tablespace Quotas to Users → objects the privilege to create the object and a quota (space allowance or limit) in the tablespace … intended to hold the object segment. See Also: Oracle Database Security Guide for information about creating users and assigning tablespace quotas.
Creating a Default Temporary Tablespace → The DEFAULT TEMPORARY TABLESPACE clause of the CREATE DATABASE statement creates a default … temporary tablespace for the database. Oracle Database assigns this tablespace as the temporary tablespace … for users who are not explicitly assigned a temporary tablespace. You can explicitly assign a
Creating a Locally Managed Tablespace → Create a locally managed tablespace by specifying LOCAL in the EXTENT MANAGEMENT clause of the … CREATE TABLESPACE statement. This is the default for new permanent tablespaces, but you must specify the … (the default), or you can specify that the tablespace is managed with uniform extents of a specific … size ( UNIFORM ). If you