Feature
DBA_TAB_SUBPARTITIONS displays, for each subpartition, the subpartition name, the names of the table and partition to which it belongs, its storage attributes, and statistics generated by the DBMS_STATS package.
Related views
ALL_TAB_SUBPARTITIONSUSER_TAB_SUBPARTITIONS
Fields
| Field | 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 subpartition expression. |
| HIGH_VALUE_LENGTH | NUMBER | NO | The length of the subpartition expression. |
| PARTITION_POSITION | NUMBER | NO | The position of the partition. |
| SUBPARTITION_POSITION | NUMBER | NO | The position of the subpartition within the partition. |
| TABLESPACE_NAME | VARCHAR2(30) | NO | The name of the tablespace containing the subpartition. |
| PCT_FREE | NUMBER | NO | At present, this field is not supported and is NULL by default. |
| PCT_USED | NUMBER | NO | At present, this field is not supported and is NULL by default. |
| INI_TRANS | NUMBER | NO | At present, this field is not supported and is NULL by default. |
| MAX_TRANS | NUMBER | NO | At present, this field is not supported and is NULL by default. |
| INITIAL_EXTENT | NUMBER | NO | At present, this field is not supported and is NULL by default. |
| NEXT_EXTENT | NUMBER | NO | At present, this field is not supported and is NULL by default. |
| MIN_EXTENT | NUMBER | NO | At present, this field is not supported and is NULL by default. |
| MAX_EXTENT | NUMBER | NO | At present, this field is not supported and is NULL by default. |
| MAX_SIZE | NUMBER | NO | At present, this field is not supported and is NULL by default. |
| PCT_INCREASE | NUMBER | NO | At present, this field is not supported and is NULL by default. |
| FREELISTS | NUMBER | NO | At present, this field is not supported and is NULL by default. |
| FREELIST_GROUPS | NUMBER | NO | At present, this field is not supported and is NULL by default. |
| LOGGING | VARCHAR2(3) | NO | At present, this field is not supported and is NULL by default. |
| COMPRESSION | VARCHAR2(8) | NO | Indicates whether compression is enabled for the subpartition. |
| COMPRESS_FOR | VARCHAR2(30) | NO | The compression method. |
| NUM_ROWS | NUMBER | NO | At present, this field is not supported and is NULL by default. |
| BLOCKS | NUMBER | NO | At present, this field is not supported and is NULL by default. |
| EMPTY_BLOCKS | NUMBER | NO | At present, this field is not supported and is NULL by default. |
| AVG_SPACE | NUMBER | NO | At present, this field is not supported and is NULL by default. |
| CHAIN_CNT | NUMBER | NO | At present, this field is not supported and is NULL by default. |
| AVG_ROW_LEN | NUMBER | NO | At present, this field is not supported and is NULL by default. |
| SAMPLE_SIZE | NUMBER | NO | At present, this field is not supported and is NULL by default. |
| LAST_ANALYZED | DATE | NO | At present, this field is not supported and is NULL by default. |
| BUFFER_POOL | VARCHAR2(7) | NO | At present, this field is not supported and is NULL by default. |
| FLASH_CACHE | VARCHAR2(7) | NO | At present, this field is not supported and is NULL by default. |
| CELL_FLASH_CACHE | VARCHAR2(7) | NO | At present, this field is not supported and is NULL by default. |
| GLOBAL_STATS | VARCHAR2(3) | NO | At present, this field is not supported and is NULL by default. |
| USER_STATS | VARCHAR2(3) | NO | At present, this field is not supported and is NULL by default. |
| INTERVAL | VARCHAR2(3) | NO | At present, this field is not supported and is NULL by default. |
| SEGMENT_CREATED | VARCHAR2(3) | NO | At present, this field is not supported and is NULL by default. |
| INDEXING | VARCHAR2(3) | NO | The index attribute. Valid values: |
| READ_ONLY | VARCHAR2(3) | NO | Indicates whether the subpartition is read-only. Valid values: |
| INMEMORY | VARCHAR2(8) | NO | Indicates whether in-memory column store is enabled for the subpartition. Valid values: |
| INMEMORY_PRIORITY | VARCHAR2(8) | NO | The padding priority of the in-memory column store. Valid values: |
| INMEMORY_DISTRIBUTE | VARCHAR2(15) | NO | At present, this field is not supported and is NULL by default. |
| INMEMORY_COMPRESSION | VARCHAR2(17) | NO | The compression level for in-memory column store. Valid values: This value is based on the location of the middle section of the table. For example, if the table is partitioned and in-memory column store is enabled, the value for ALL_TABLES is NULL and the value for ALL_TAB_SUBPARTITIONS is not NULL. |
| INMEMORY_DUPLICATE | VARCHAR2(13) | NO | At present, this field is not supported and is NULL by default. |
| INMEMORY_SERVICE | VARCHAR2(12) | NO | The way that in-memory column store is padded on various instances. Valid values: |
| INMEMORY_SERVICE_NAME | VARCHAR2(1000) | NO | The name of the service on which in-memory column store is padded. This column has values only when INMEMORY_SERVICE is set to USER_DEFINED, and is empty in other cases. |
| CELLMEMORY | VARCHAR2(24) | NO | At present, this field is not supported and is NULL by default. |
| MEMOPTIMIZE_READ | VARCHAR2(8) | NO | Indicates whether shortcut-based access is enabled for the table. Valid values: |
| MEMOPTIMIZE_WRITE | VARCHAR2(8) | NO | For internal use only. |