Purpose
The ALL_TAB_SUBPARTITIONS view displays the partition-level partitioning information, storage parameters, and statistics generated by the DBMS_STATS package for partitions that the current user can access.
Applicability
This view applies only to OceanBase Database in Oracle mode.
Columns
| Column | Type | Nullable? | Description |
|---|---|---|---|
| TABLE_OWNER | VARCHAR2(128) | NO | The owner of the table. |
| TABLE_NAME | VARCHAR2(128) | NO | The name of the table. |
| PARTITION_NAME | VARCHAR2(128) | NO | The name of the partition. |
| SUBPARTITION_NAME | VARCHAR2(128) | NO | The name of the subpartition. |
| HIGH_VALUE | VARCHAR2(32767) | NO | The subpartitioning expression. |
| HIGH_VALUE_LENGTH | NUMBER | NO | The length of the subpartitioning expression. |
| PARTITION_POSITION | NUMBER | NO | The position of the partition. |
| SUBPARTITION_POSITION | NUMBER | NO | The position of the subpartition in the partition. |
| TABLESPACE_NAME | VARCHAR2(30) | NO | The name of the tablespace that contains the subpartition. |
| PCT_FREE | NUMBER | NO | Not supported. The default value is NULL. |
| PCT_USED | NUMBER | NO | Not supported. The default value is NULL. |
| INI_TRANS | NUMBER | NO | Not supported. The default value is NULL. |
| MAX_TRANS | NUMBER | NO | Not supported. The default value is NULL. |
| INITIAL_EXTENT | NUMBER | NO | Not supported. The default value is NULL. |
| NEXT_EXTENT | NUMBER | NO | Not supported. The default value is NULL. |
| MIN_EXTENT | NUMBER | NO | Not supported. The default value is NULL. |
| MAX_EXTENT | NUMBER | NO | Not supported. The default value is NULL. |
| MAX_SIZE | NUMBER | NO | Not supported. The default value is NULL. |
| PCT_INCREASE | NUMBER | NO | Not supported. The default value is NULL. |
| FREELISTS | NUMBER | NO | Not supported. The default value is NULL. |
| FREELIST_GROUPS | NUMBER | NO | Not supported. The default value is NULL. |
| LOGGING | VARCHAR2(3) | NO | Not supported. The default value is NULL. |
| COMPRESSION | VARCHAR2(8) | NO | Indicates whether the subpartition is compressed. |
| COMPRESS_FOR | VARCHAR2(30) | NO | The compression method. |
| NUM_ROWS | NUMBER | NO | Not supported. The default value is NULL. |
| BLOCKS | NUMBER | NO | Not supported. The default value is NULL. |
| EMPTY_BLOCKS | NUMBER | NO | Not supported. The default value is NULL. |
| AVG_SPACE | NUMBER | NO | Not supported. The default value is NULL. |
| CHAIN_CNT | NUMBER | NO | Not supported. The default value is NULL. |
| AVG_ROW_LEN | NUMBER | NO | Not supported. The default value is NULL. |
| SAMPLE_SIZE | NUMBER | NO | Not supported. The default value is NULL. |
| LAST_ANALYZED | DATE | NO | Not supported. The default value is NULL. |
| BUFFER_POOL | VARCHAR2(7) | NO | Not supported. The default value is NULL. |
| FLASH_CACHE | VARCHAR2(7) | NO | Not supported. The default value is NULL. |
| CELL_FLASH_CACHE | VARCHAR2(7) | NO | Not supported. The default value is NULL. |
| GLOBAL_STATS | VARCHAR2(3) | NO | Not supported. The default value is NULL. |
| USER_STATS | VARCHAR2(3) | NO | Not supported. The default value is NULL. |
| INTERVAL | VARCHAR2(3) | NO | Not supported. The default value is NO. |
| SEGMENT_CREATED | VARCHAR2(3) | NO | Not supported. The default value is NULL. |
| INDEXING | VARCHAR2(3) | NO | The default value is NULL. |
| READ_ONLY | VARCHAR2(3) | NO | The default value is NULL. |
| INMEMORY | VARCHAR2(8) | NO | Compatible with Oracle. The value is NULL and has no practical meaning. |
| INMEMORY_PRIORITY | VARCHAR2(8) | NO | Compatible with Oracle. The value is NULL and has no practical meaning. |
| INMEMORY_DISTRIBUTE | VARCHAR2(15) | NO | Compatible with Oracle. The value is NULL and has no practical meaning. |
| INMEMORY_COMPRESSION | VARCHAR2(17) | NO | Compatible with Oracle. The value is NULL and has no practical meaning. |
| INMEMORY_DUPLICATE | VARCHAR2(13) | NO | Compatible with Oracle. The value is NULL and has no practical meaning. |
| INMEMORY_SERVICE | VARCHAR2(12) | NO | Compatible with Oracle. The value is NULL and has no practical meaning. |
| INMEMORY_SERVICE_NAME | VARCHAR2(1000) | NO | Compatible with Oracle. The value is NULL and has no practical meaning. |
| CELLMEMORY | VARCHAR2(24) | NO | Compatible with Oracle. The value is NULL and has no practical meaning. |
| MEMOPTIMIZE_READ | VARCHAR2(8) | NO | The default value is NULL. |
| MEMOPTIMIZE_WRITE | VARCHAR2(8) | NO | The default value is NULL. |
References
DBA_TAB_SUBPARTITIONS
USER_TAB_SUBPARTITIONS