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

DBA_TAB_SUBPARTITIONS provides such information for all subpartitions in the database.
USER_TAB_SUBPARTITIONS provides such information for subpartitions of all partitioned objects owned by the current user. This view does not display the TABLE_OWNER column.

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
`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
`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`)