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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