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Oracle® Database Reference 10g Release 2 (10.2) Part Number B14237-02 |
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# ALL_IND_SUBPARTITIONS

`ALL_IND_SUBPARTITIONS` describes, for each index subpartition accessible to the current user, the partition-level partitioning information, the storage parameters for the subpartition, and various partition statistics collected by `ANALYZE` statements.

Related Views

- `DBA_IND_SUBPARTITIONS` describes all index subpartitions in the database.

- `USER_IND_SUBPARTITIONS` describes the index subpartitions owned by the current user. This view does not display the `INDEX_OWNER` column.

Column | Datatype | NULL | Description
--- | --- | --- | ---
`INDEX_OWNER` | `VARCHAR2(30)` | `NOT NULL` | Owner of the index
`INDEX_NAME` | `VARCHAR2(30)` | `NOT NULL` | Name of the index
`PARTITION_NAME` | `VARCHAR2(30)` |  | Name of the partition
`SUBPARTITION_NAME` | `VARCHAR2(30)` |  | Name of the subpartition
`SUBPARTITION_POSITION` | `NUMBER` | `NOT NULL` | Position of a subpartition within a partition
`STATUS` | `VARCHAR2(8)` |  | Whether index partition is usable or not
`TABLESPACE_NAME` | `VARCHAR2(30)` | `NOT NULL` | Name of the tablespace containing the partition
`PCT_FREE` | `NUMBER` | `NOT NULL` | Minimum percentage of free 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
`NEXT_EXTENT` | `NUMBER` |  | Size of secondary extents in bytes
`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 process freelists allocated in this segment
`FREELIST_GROUPS` | `NUMBER` |  | Number of process freelist groups allocated in this segment
`LOGGING` | `VARCHAR2(3)` |  | Logging attribute of partition
`BLEVEL` | `NUMBER` |  | B-Tree level: depth of the index from its root block to its leaf blocks. A depth of `0` indicates that the root block and leaf block are the same.
`LEAF_BLOCKS` | `NUMBER` |  | Number of leaf blocks in the index
`DISTINCT_KEYS` | `NUMBER` |  | Number of distinct keys in the index partition
`AVG_LEAF_BLOCKS_PER_KEY` | `NUMBER` |  | Average number of leaf blocks in which each distinct value in the index appears, rounded to the nearest integer. For indexes that enforce `UNIQUE` and `PRIMARY` `KEY` constraints, this value is always `1`.
`AVG_DATA_BLOCKS_PER_KEY` | `NUMBER` |  | Average number of data blocks in the table that are pointed to by a distinct value in the index rounded to the nearest integer. This statistic is the average number of data blocks that contain rows that contain a given value for the indexed columns.
`CLUSTERING_FACTOR` | `NUMBER` |  | Indicates the amount of order of the rows in the table based on the values of the index. If the value is near the number of blocks, then the table is very well ordered. In this case, the index entries in a single leaf block tend to point to rows in the same data blocks. If the value is near the number of rows, then the table is very randomly ordered. In this case, it is unlikely that index entries in the same leaf block point to rows in the same data blocks.
`NUM_ROWS` | `NUMBER` |  | Number of rows in this index subpartition
`SAMPLE_SIZE` | `NUMBER` |  | Sample size used in analyzing this subpartition
`LAST_ANALYZED` | `DATE` |  | Date on which this partition was most recently analyzed
`BUFFER_POOL` | `VARCHAR2(7)` |  | Default buffer pool for the subpartition
`USER_STATS` | `VARCHAR2(3)` |  | Indicates whether statistics were entered directly by the user (`YES`) or not (`NO`)
`GLOBAL_STATS` | `VARCHAR2(3)` |  | Indicates whether column statistics for the subpartition statistics were collected by analyzing the table as a whole (`YES`) or estimated from statistics gathered on partitions and subpartitions (`NO`)