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How do I change LOB tablespace?

How do I change LOB tablespace?

How to move lob segment to another tablespace

  1. Follow below steps from moving lob segment from one tablespace to another.
  2. SQL> alter table DBACLASS.
  3. SQL> select table_name,COLUMN_NAME,SEGMENT_NAME,TABLESPACE_NAME from dba_lobs where OWNER=’DBACLASS’;

How do you move a table with a LOB column?

Moving oracle tables with lob columns to another tablespace

  1. Move table.
  2. Rebuild indexes (and move them to the new tablespace if you wish so)
  3. Move the lob segment.
  4. Enable row movement.
  5. Shrink the table and lob segment.

How do I move a LOB partition?

The correct syntax to move these LOB segments is: ALTER TABLE SCOTT. MYTABLE MOVE PARTITION P_AMELDING LOB (TOTALER) STORE AS BASICFILE (TABLESPACE DATA1); ALTER TABLE SCOTT. MYTABLE MOVE PARTITION P_AMELDING LOB (OPPSUMMERING) STORE AS BASICFILE (TABLESPACE DATA1); ALTER TABLE SCOTT.

How do you rebuild a LOB segment?

Commands to rebuild Index, Partitioned Index, LOB Index, IOT (Index Organized Table)

  1. To rebuild the partitioned index: set pagesize 1000.
  2. To rebuild the LOB index: select ‘alter table ‘||owner||’.’||table_name||’ move tablespace TARGET_TABLESPACE ‘||chr(10)||
  3. To rebuild the index organized table index (IOT):

How do I move a lob segment to another tablespace in Oracle?

Move Lob Segment to Another Tablespace in Oracle You can move any lob segment to another tablespace as follows. ALTER TABLE OWNER. TABLE_NAME MOVE LOB(LOB_COLUMN) STORE AS (TABLESPACE NEW_TABLESPACE_NAME);

What is Alter Table move in Oracle?

The move_table_clause lets you relocate data of a nonpartitioned table or of a partition of a partitioned table into a new segment, optionally in a different tablespace, and optionally modify any of its storage attributes.

How do I delete a lob object in Oracle?

When you drop a table, then all the objects including the LOB objects and their LOB indexes are also dropped. You will not need any further actions. You can query select * from dba_lobs which will give you the table name and the lob column name and any other details that you may need.

How do I move a partition to another tablespace?

Overview

  1. The first form is to move a partition to a new tablespace: ALTER TABLE table_name MOVE PARTITION partition_name TABLESPACE tablespace_name;
  2. The second form is to move a subpartition to a new tablespace: ALTER TABLE table_name MOVE SUBPARTITION subpartition_name TABLESPACE tablespace_name;

How do you shrink a lob segment in Oracle 12c?

— Shrink a LOB segment (basicfile only until 21c). ALTER TABLE table_name MODIFY LOB(lob_column) (SHRINK SPACE); ALTER TABLE table_name MODIFY LOB(lob_column) (SHRINK SPACE CASCADE); — Shrink an IOT overflow segment. ALTER TABLE iot_name OVERFLOW SHRINK SPACE; There is more detail about this functionality below.

How do you shrink a SecureFile lob?

Step 3 : Shrink the SecureFile LOB after rows are updated

  1. Update the CLOB. SQL> UPDATE hr.t1 SET a=a||a||a||a||a||a||a; 8 rows updated.
  2. Shrink the LOB segment.
  3. Display the number of extents or blocks freed.
  4. Update the CLOB.
  5. Shrink the LOB segment.
  6. Display the number of extents or blocks freed.

How do I move a partitioned index to another tablespace?

ALTER INDEX PK_REFUND_ID REBUILD PARTITION PR_REFUND_OLD [ONLINE] TABLESPACE T_IDX; might be used to move the index of the partition to a different tablespace. Using ONLINE option would suit well for the tables currently having DML activity.

How can I change the tablespace of a table in Oracle?

To alter the SYSAUX tablespace, you must have the SYSDBA system privilege. If you have ALTER TABLESPACE system privilege, then you can perform any ALTER TABLESPACE operation….ALTER TABLESPACE

  1. Take the tablespace online or offline.
  2. Begin or end a backup.
  3. Make the tablespace read only or read write.

How to alter a tablespace in Oracle Database?

Use the ALTER TABLESPACE statement to alter an existing tablespace or one or more of its data files or temp files. 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 in Oracle Database PL/SQL Packages and Types Reference.

How do I change the lob tablespace of a varray?

The LOB tablespace for a varray defaults to the tablespace of the containing table. Use the alter_external_table_clause to change the characteristics of an external table. This clause has no affect on the external data itself.

How does the ALTER TABLE move lob syntax work?

The ALTER TABLE MOVE LOB syntax can process any arbitrary LOB storage clause represented by the LOB_storage_clause in the ALTER TABLE BNF, and will move the LOB data to a new location.

How do I change the storage characteristics of a lob column?

You can use the ALTER TABLE statement to change the storage characteristics of a LOB column. This section has the syntax for ALTER TABLE in Backus Naur (BNF) notation, parts of which have been simplified to keep the focus on LOB-specific parameters. ALTER TABLE for more information on usage of ALTER TABLE statement.