Note
This view is available starting with V2.2.77.
Purpose
This view displays the primary partition information of all partitioned tables in the current tenant.
Columns
Column |
Type |
Nullable |
Description |
||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| TABLE_OWNER | VARCHAR2(128) | NO | The user who owns the partitioned table. | ||||||||||
| TABLE_NAME | VARCHAR2(128) | NO | The name of the partitioned table. | ||||||||||
| COMPOSITE | VARCHAR2(3) | NO | Indicates whether the partition is a composite partition. | ||||||||||
| PARTITION_NAME | VARCHAR2(128) | NO | The name of the partition. | ||||||||||
| SUBPARTITION_COUNT | NUMBER | NO | The number of subpartitions. | ||||||||||
| HIGH_VALUE | VARCHAR2(32767) | NO | The partitioning expression. | ||||||||||
| HIGH_VALUE_LENGTH | NUMBER | NO | The length of the partitioning expression. | ||||||||||
| PARTITION_POSITION | NUMBER | NO | The position of the partition. | ||||||||||
| TABLESPACE_NAME | VARCHAR2(30) | NO | The name of the tablespace to which the partition belongs. | ||||||||||
| PCT_FREE | NUMBER | NO | This column is not supported. The default value is NULL. | ||||||||||
| PCT_USED | NUMBER | NO | This column is not supported. The default value is NULL. | ||||||||||
| INI_TRANS | NUMBER | NO | This column is not supported. The default value is NULL. | ||||||||||
| MAX_TRANS | NUMBER | NO | This column is not supported. The default value is NULL. | ||||||||||
| INITIAL_EXTENT | NUMBER | NO | This column is not supported. The default value is NULL. | ||||||||||
| NEXT_EXTENT | NUMBER | NO | This column is not supported. The default value is NULL. | ||||||||||
| MIN_EXTENT | NUMBER | NO | This column is not supported. The default value is NULL. | ||||||||||
| MAX_EXTENT | NUMBER | NO | This column is not supported. The default value is NULL. | ||||||||||
| MAX_SIZE | NUMBER | NO | This column is not supported. The default value is NULL. | ||||||||||
| PCT_INCREASE | NUMBER | NO | This column is not supported. The default value is NULL. | ||||||||||
| FREELISTS | NUMBER | NO | This column is not supported. The default value is NULL. | ||||||||||
| FREELIST_GROUPS | NUMBER | NO | This column is not supported. The default value is NULL. | ||||||||||
| LOGGING | VARCHAR2(7) | NO | This column is not supported. The default value is NULL. | ||||||||||
| COMPRESSION | VARCHAR2(8) | NO | Indicates whether compression is enabled. | ||||||||||
| COMPRESS_FOR | VARCHAR2(30) | NO | The compression method. | ||||||||||
| NUM_ROWS | NUMBER | NO | This column is not supported. The default value is NULL. | ||||||||||
| BLOCKS | NUMBER | NO | This column is not supported. The default value is NULL. | ||||||||||
| EMPTY_BLOCKS | NUMBER | NO | This column is not supported. The default value is NULL. | ||||||||||
| AVG_SPACE | NUMBER | NO | This column is not supported. The default value is NULL. | ||||||||||
| CHAIN_CNT | NUMBER | NO | This column is not supported. The default value is NULL. | ||||||||||
| AVG_ROW_LEN | NUMBER | NO | This column is not supported. The default value is NULL. | ||||||||||
| SAMPLE_SIZE | NUMBER | NO | This column is not supported. The default value is NULL. | ||||||||||
| LAST_ANALYZED | DATE | NO | This column is not supported. The default value is NULL. | ||||||||||
| BUFFER_POOL | VARCHAR2(7) | NO | This column is not supported. The default value is NULL. | ||||||||||
| FLASH_CACHE | VARCHAR2(7) | NO | This column is not supported. The default value is NULL. | ||||||||||
| CELL_FLASH_CACHE | VARCHAR2(7) | NO | This column is not supported. The default value is NULL. | ||||||||||
| GLOBAL_STATS | VARCHAR2(3) | NO | This column is not supported. The default value is NULL. | ||||||||||
| USER_STATS | VARCHAR2(3) | NO | This column is not supported. The default value is NULL. | ||||||||||
| IS_NESTED | VARCHAR2(3) | NO | This column is not supported. The default value is NULL. | ||||||||||
| PARENT_TABLE_PARTITION | VARCHAR2(128) | NO | This column is not supported. The default value is NULL. | ||||||||||
| INTERVAL | VARCHAR2(3) | NO | This field is currently not supported and the value of this field is NO by default. |
||||||||||
| SEGMENT_CREATED | VARCHAR2(4) | NO | This column is not supported currently. The value of this column is NULL by default. | ||||||||||
| INDEXING | VARCHAR2(4) | NO | This column is not currently supported, and its default value is NULL. | ||||||||||
| Column | Type | Nullable | Description | --- | --- | --- | --- | READ_ONLY | VARCHAR2(4) | NO | This column is not supported and currently defaults to NULL. | ||
| INMEMORY | VARCHAR2(8) | NO | A compatibility field that is retained to remain compatible with Oracle Database, which always has a value of NULL. | ||||||||||
| INMEMORY_PRIORITY | VARCHAR2(8) | NO | Specifies an Oracle compatible column. Its value is NULL, which has no practical meaning. | ||||||||||
| INMEMORY_DISTRIBUTE | VARCHAR2(15) | NO | This column is not supported and will be NULL by default. | ||||||||||
| INMEMORY_COMPRESSION | VARCHAR2(17) | NO | This column is a compatibility column that corresponds to Oracle DB and is always set to NULL. | ||||||||||
| INMEMORY_DUPLICATE | VARCHAR2(13) | NO | This is an Oracle-compatible field, which is NULL and has no meaning. | ||||||||||
| CELLMEMORY | VARCHAR2(24) | NO | This column corresponds to a compatible Oracle field, and the value is NULL, which is not meaningful. | ||||||||||
| INMEMORY_SERVICE | VARCHAR2(12) | NO | Compatibility fields; NULL indicates that the column is unused. | ||||||||||
| INMEMORY_SERVICE_NAME | VARCHAR2(100) | NO | A field compatible with Oracle, which is set to NULL and does not hold practical significance. | ||||||||||
| MEMOPTIMIZE_READ | VARCHAR2(8) | NO | The value of this column is NULL by default. This column is not supported. | ||||||||||
| MEMOPTIMIZE_WRITE | VARCHAR2(8) | NO | This column is not supported. Its default value is NULL. |
Sample query
Query the primary partitions of the TBL2_F_RL table in the current user's tenant.
obclient [SYS]> SELECT TABLE_OWNER, TABLE_NAME, COMPOSITE, PARTITION_NAME, SUBPARTITION_COUNT, HIGH_VALUE_LENGTH, PARTITION_POSITION
FROM SYS.DBA_TAB_PARTITIONS
WHERE TABLE_NAME='TBL2_F_RL';
The query result is as follows:
+-------------+------------+-----------+----------------+--------------------+-------------------+--------------------+
| TABLE_OWNER | TABLE_NAME | COMPOSITE | PARTITION_NAME | SUBPARTITION_COUNT | HIGH_VALUE_LENGTH | PARTITION_POSITION |
+-------------+------------+-----------+----------------+--------------------+-------------------+--------------------+
| SYS | TBL2_F_RL | YES | P0 | 3 | 3 | 1 |
| SYS | TBL2_F_RL | YES | P1 | 3 | 3 | 2 |
+-------------+------------+-----------+----------------+--------------------+-------------------+--------------------+
2 rows in set
References
View the primary partitions of all tenants' tables: CDB_TAB_PARTITIONS
View the primary partitions of tables accessible to the current user: ALL_TAB_PARTITIONS
View the primary partitions of tables owned by the current user: USER_TAB_PARTITIONS
View the details of secondary partitions of tables in the current tenant: DBA_TAB_SUBPARTITIONS