Wednesday, September 17, 2008

DBA_LOB_SUBPARTITIONS

DBA_LOB_SUBPARTITIONS displays partition-level attributes of all LOB data subpartitions in the database. Its columns are the same as those in "ALL_LOB_SUBPARTITIONS".

Related Views

· ALL_LOB_SUBPARTITIONS displays partition-level attributes of LOB data subpartitions accessible to the current user.

· USER_LOB_SUBPARTITIONS describes the LOB subpartitions owned by the current user. This view does not display the TABLE_OWNER column.

Column

Datatype

NULL

Description

TABLE_OWNER

VARCHAR2(30)

NOT NULL

Owner of the table

TABLE_NAME

VARCHAR2(30)

NOT NULL

Name of the table

COLUMN_NAME

VARCHAR2(4000)

Name of the LOB column

LOB_NAME

VARCHAR2(30)

NOT NULL

Name of the partitioned LOB item

LOB_PARTITION_NAME

VARCHAR2(30)

Name of LOB data partition to which this LOB data subpartition belongs

SUBPARTITION_NAME

VARCHAR2(30)

Name of the table subpartition to which this LOB subpartition corresponds

LOB_SUBPARTITION_NAME

VARCHAR2(30)

Name of the LOB subpartition

LOB_INDSUBPART_NAME

VARCHAR2(30)

Name of corresponding LOB index subpartition

SUBPARTITION_POSITION

NUMBER

Position of the LOB data partition within the LOB item

CHUNK

NUMBER

Value of the CHUNK attribute of the LOB data partition

PCTVERSION

NUMBER

NOT NULL

Value of the PCTVERSION attribute of the LOB data partition

CACHE

VARCHAR2(10)

Whether and how the cluster is to be cached in the buffer cache (CACHE, NOCACHE, CACHEREADS)

IN_ROW

VARCHAR2(3)

Whether the STORAGE IN ROW attribute of the LOB data partition is enabled

TABLESPACE_NAME

VARCHAR2(30)

NOT NULL

Name of the tablespace containing the LOB data partition

INITIAL_EXTENT

NUMBER

Size in bytes of the initial extent for the LOB data partition

NEXT_EXTENT

NUMBER

Size in bytes of secondary extents for the LOB data partition

MIN_EXTENTS

NUMBER

NOT NULL

Minimum number of extents allowed in the segment of the LOB data partition

MAX_EXTENTS

NUMBER

NOT NULL

Maximum number of extents allowed in the segment of the LOB data partition

PCT_INCREASE

NUMBER

Percentage increase in extent size for the LOB data partition

FREELISTS

NUMBER

Number of process freelists allocated in the segment of the LOB data partition

FREELIST_GROUPS

NUMBER

Number of freelist groups allocated in the segment of the LOB data partition

LOGGING

VARCHAR2(3)

Logging attribute of the LOB data partition

BUFFER_POOL

VARCHAR2(7)

Default buffer pool to be used for the LOB data partition blocks

ENCRYPT

VARCHAR2(3)

Whether or not the LOB is encrypted

COMPRESSION

VARCHAR2(6)

The level of compression used for this LOB

DEDUPLICATION

VARCHAR2(15)

The kind of deduplication used for this LOB

SECUREFILE

VARCHAR2(3)

Indicates whether the LOB is a SecureFile LOB (YES) or not (NO)

Oracle data dictionary views

Oracle dynamic performance views

No comments:

Post a Comment