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Oracle® Database Reference
11g Release 1 (11.1)

Part Number B28320-01
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ALL_TAB_SUBPARTITIONS

ALL_TAB_SUBPARTITIONS describes, for each table subpartition accessible to the current user, the subpartition name, name of the table and partition to which it belongs, and its storage attributes.

Related Views

Note:

Statistics are not collected on a per-subpartition basis.
Column Datatype NULL Description
TABLE_OWNER VARCHAR2(30) NOT NULL Table owner
TABLE_NAME VARCHAR2(30) NOT NULL Table name
PARTITION_NAME VARCHAR2(30)
Partition name
HIGH_VALUE LONG
Subpartition bound value expression
HIGH_VALUE_LENGTH NUMBER NOT NULL Length of subpartition bound value expression
SUBPARTITION_NAME VARCHAR2(30)
Subpartition name
SUBPARTITION_POSITION NUMBER NOT NULL Position of a subpartition within a partition
TABLESPACE_NAME VARCHAR2(30) NOT NULL Name of the tablespace containing the subpartition
PCT_FREE NUMBER NOT NULL Minimum percentage of free space in a block
PCT_USED NUMBER NOT NULL Minimum percentage of used space in a block
INI_TRANS NUMBER NOT NULL Initial number of transactions
MAX_TRANS NUMBER NOT NULL Maximum number of transactions
INITIAL_EXTENT NUMBER
Size of the initial extent in bytes (for a range partition); size of the initial extent in blocks (for a composite partition)
NEXT_EXTENT NUMBER
Size of secondary extents in bytes (for a range partition); size of secondary extents in blocks (for a composite partition)
MIN_EXTENT NUMBER NOT NULL Minimum number of extents allowed in the segment
MAX_EXTENT NUMBER NOT NULL Maximum number of extents allowed in the segment
PCT_INCREASE NUMBER NOT NULL Percentage increase in extent size
FREELISTS NUMBER
Number of freelist groups allocated in this segment
FREELIST_GROUPS NUMBER
Number of freelist groups allocated in this segment
LOGGING VARCHAR2(3)
Logging attribute of subpartition
COMPRESSION VARCHAR2(8)
Indicates whether this subpartition is compressed (ENABLED) or not (DISABLED)
NUM_ROWS NUMBER
The number of rows
BLOCKS NUMBER
The number of blocks
EMPTY_BLOCKS NUMBER
The number of empty blocks
AVG_SPACE NUMBER
The average space
CHAIN_CNT NUMBER
The chain count
AVG_ROW_LEN NUMBER
The average row length
SAMPLE_SIZE NUMBER
The sample size
LAST_ANALYZED DATE
The date on which this table was most recently analyzed
BUFFER_POOL VARCHAR2(7)
The default buffer pool for this subpartition
GLOBAL_STATS VARCHAR2(3)
Indicates whether column statistics for the subpartition were collected by analyzing the table as a whole (YES) or estimated from statistics collected for partitions and subpartitions (NO)
USER_STATS VARCHAR2(3)
Indicates whether statistics were entered directly by the user (YES) or not (NO)