Purpose
The DBA_TABLES view displays all tables in the database.
Related views
ALL_TABLESUSER_TABLES
Columns
| Column | Type | Nullable? | Description |
|---|---|---|---|
| OWNER | VARCHAR2(128) | NO | The owner of the table. |
| TABLE_NAME | VARCHAR2(128) | NO | The name of the table. |
| TABLESPACE_NAME | VARCHAR2(30) | NO | The name of the tablespace containing the table. |
| CLUSTER_NAME | VARCHAR2(128) | NO | At present, this column is not supported and is NULL by default. |
| IOT_NAME | VARCHAR2(128) | NO | At present, this column is not supported and is NULL by default. |
| STATUS | VARCHAR2(8) | NO | The table status. Valid values: |
| PCT_FREE | NUMBER | NO | The minimum percentage of free space in a block. |
| PCT_USED | NUMBER | NO | At present, this column is not supported and is NULL by default. |
| INI_TRANS | NUMBER | NO | At present, this column is not supported and is NULL by default. |
| MAX_TRANS | NUMBER | NO | At present, this column is not supported and is NULL by default. |
| INITIAL_EXTENT | NUMBER | NO | At present, this column is not supported and is NULL by default. |
| NEXT_EXTENT | NUMBER | NO | At present, this column is not supported and is NULL by default. |
| MIN_EXTENTS | NUMBER | NO | At present, this column is not supported and is NULL by default. |
| MAX_EXTENTS | NUMBER | NO | At present, this column is not supported and is NULL by default. |
| PCT_INCREASE | NUMBER | NO | At present, this column is not supported and is NULL by default. |
| FREELISTS | NUMBER | NO | At present, this column is not supported and is NULL by default. |
| FREELIST_GROUPS | NUMBER | NO | At present, this column is not supported and is NULL by default. |
| LOGGING | VARCHAR2(3) | NO | At present, this column is not supported and is NULL by default. |
| BACKED_UP | VARCHAR2(1) | NO | At present, this column is not supported and is NULL by default. |
| NUM_ROWS | NUMBER | NO | The number of rows in the table. |
| BLOCKS | NUMBER | NO | At present, this column is not supported and is NULL by default. |
| EMPTY_BLOCKS | NUMBER | NO | At present, this column is not supported and is NULL by default. |
| AVG_SPACE | NUMBER | NO | At present, this column is not supported and is NULL by default. |
| CHAIN_CNT | NUMBER | NO | At present, this column is not supported and is NULL by default. |
| AVG_ROW_LEN | NUMBER | NO | At present, this column is not supported and is NULL by default. |
| AVG_SPACE_FREELIST_BLOCKS | NUMBER | NO | At present, this column is not supported and is NULL by default. |
| NUM_FREELIST_BLOCKS | NUMBER | NO | At present, this column is not supported and is NULL by default. |
| DEGREE | VARCHAR2(10) | NO | At present, this column is not supported and is NULL by default. |
| INSTANCES | VARCHAR2(10) | NO | At present, this column is not supported and is NULL by default. |
| CACHE | VARCHAR2(5) | NO | At present, this column is not supported and is NULL by default. |
| TABLE_LOCK | VARCHAR2(8) | NO | At present, this column is not supported and is NULL by default. |
| SAMPLE_SIZE | NUMBER | NO | At present, this column is not supported and is NULL by default. |
| LAST_ANALYZED | DATE | NO | At present, this column is not supported and is NULL by default. |
| PARTITIONED | VARCHAR2(3) | NO | Indicates whether the table is partitioned. Valid values:
|
| IOT_TYPE | VARCHAR2(12) | NO | At present, this column is not supported and is NULL by default. |
| TEMPORARY | VARCHAR2(1) | NO | Indicates whether the table is a temporary table. |
| SECONDARY | VARCHAR2(1) | NO | At present, this column is not supported and is NULL by default. |
| NESTED | VARCHAR2(3) | NO | Indicates whether the table is a nested table. Valid values:
|
| BUFFER_POOL | VARCHAR2(7) | NO | At present, this column is not supported and is NULL by default. |
| FLASH_CACHE | VARCHAR2(7) | NO | At present, this column is not supported and is NULL by default. |
| CELL_FLASH_CACHE | VARCHAR2(7) | NO | At present, this column is not supported and is NULL by default. |
| ROW_MOVEMENT | VARCHAR2(8) | NO | At present, this column is not supported and is NULL by default. |
| GLOBAL_STATS | VARCHAR2(3) | NO | At present, this column is not supported and is NULL by default. |
| USER_STATS | VARCHAR2(3) | NO | At present, this column is not supported and is NULL by default. |
| DURATION | VARCHAR2(15) | NO | The duration of a temporary table. |
| SKIP_CORRUPT | VARCHAR2(8) | NO | At present, this column is not supported and is NULL by default. |
| MONITORING | VARCHAR2(3) | NO | At present, this column is not supported and is NULL by default. |
| CLUSTER_OWNER | VARCHAR2(128) | NO | At present, this column is not supported and is NULL by default. |
| DEPENDENCIES | VARCHAR2(8) | NO | At present, this column is not supported and is NULL by default. |
| COMPRESSION | VARCHAR2(8) | NO | At present, this column is not supported and is NULL by default. |
| COMPRESS_FOR | VARCHAR2(30) | NO | At present, this column is not supported and is NULL by default. |
| DROPPED | VARCHAR2(3) | NO | Indicates whether the table has been dropped and moved to the recycle bin. |
| READ_ONLY | VARCHAR2(3) | NO | At present, this column is not supported and is NULL by default. |
| SEGMENT_CREATED | VARCHAR2(3) | NO | At present, this column is not supported and is NULL by default. |
| RESULT_CACHE | VARCHAR2(7) | NO | At present, this column is not supported and is NULL by default. |
| CLUSTERING | VARCHAR2(3) | NO | Indicates whether the table has attribute clustering clauses. Valid values:
|
| ACTIVITY_TRACKING | VARCHAR2(23) | NO | Indicates whether heatmap tracking is enabled on the table. |
| DML_TIMESTAMP | VARCHAR2(25) | NO | The time when the automatic data optimization policy was created or modified. |
| HAS_IDENTITY | VARCHAR2(3) | NO | Indicates whether the table has an identifier column. Valid values:
|
| CONTAINER_DATA | VARCHAR2(3) | NO | Indicates whether the table contains container-specific data. Valid values:
|
| INMEMORY | VARCHAR2(8) | NO | Indicates whether in-memory column store is enabled for the table. Valid values:
|
| INMEMORY_PRIORITY | VARCHAR2(8) | NO | The padding priority of the in-memory column store. Valid values:
|
| INMEMORY_DISTRIBUTE | VARCHAR2(15) | NO | The distribution of in-memory column store in a Real Application Clusters (RAC) environment. Valid values:
|
| 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 | The duplicate settings for in-memory column store in the RAC environment. Valid values:
|
| DEFAULT_COLLATION | VARCHAR2(100) | NO | The default sorting rule of the table. |
| DUPLICATED | VARCHAR2(1) | NO | Indicates whether the table is duplicated on this shard. Valid values:
|
| SHARDED | VARCHAR2(1) | NO | Indicates whether the table is sharded. Valid values:
|
| EXTERNALLY_SHARDED | VARCHAR2(1) | NO | Indicates whether the table involves an external shard. Valid values:
|
| EXTERNALLY_DUPLICATED | VARCHAR2(1) | NO | Indicates whether the table involves an external duplicate. Valid values:
|
| EXTERNAL | VARCHAR2(3) | NO | Indicates whether the table is an external table. Valid values:
|
| HYBRID | VARCHAR2(3) | NO | Indicates whether the table is a hybrid partitioned table. Valid values:
A hybrid partition table can contain both partitions stored in a segment and partitions stored externally. |
| CELLMEMORY | VARCHAR2(24) | NO | The column compression value in the flash cache of the storage unit. Valid values:
This column is mainly used with Exadata. |
| CONTAINERS_DEFAULT | VARCHAR2(3) | NO | Indicates whether CONTAINERS() is enabled for the table by default. Valid values:
|
| CONTAINER_MAP | VARCHAR2(3) | NO | Indicates whether the table is enabled and used together with the database attribute container_map. Valid values:
|
| EXTENDED_DATA_LINK | VARCHAR2(3) | NO | Indicates whether obtaining extended data links from the root is enabled for the table. Valid values:
|
| EXTENDED_DATA_LINK_MAP | VARCHAR2(3) | NO | For internal use only. |
| 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. |
| CONTAINER_MAP_OBJECT | VARCHAR2(3) | NO | Indicates whether the table is used as the value of the database container_map property. Valid values:
|
| 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. |
| HAS_SENSITIVE_COLUMN | VARCHAR2(3) | NO | Indicates whether the table has one or more sensitive columns. Valid values:
|
| ADMIT_NULL | VARCHAR2(3) | NO | Indicates whether the table accepts empty CON_ID data. Valid values:
|
| DATA_LINK_DML_ENABLED | VARCHAR2(3) | NO | Indicates whether DML is allowed on the data link table. Valid values:
|
| LOGICAL_REPLICATION | VARCHAR2(8) | NO | Indicates whether logical replication is enabled for the table. Valid values:
This value is ignored if the log entry of column data replenishment is enabled across the database. |