ALL_OBJECT_TABLES
describes the object tables accessible to the current user.
DBA_OBJECT_TABLES
describes all object tables in the database.
USER_OBJECT_TABLES
describes the object tables owned by the current user. This view does not display the OWNER
column.
Column | Datatype | NULL | Description |
---|---|---|---|
OWNER |
VARCHAR2(30) |
NOT NULL |
Owner of the table |
TABLE_NAME |
VARCHAR2(30) |
NOT NULL |
Name of the table |
TABLESPACE_NAME |
VARCHAR2(30) |
Name of the tablespace containing the table; NULL for partitioned, temporary, and index-organized tables | |
CLUSTER_NAME |
VARCHAR2(30) |
Name of the cluster, if any, to which the table belongs | |
IOT_NAME |
VARCHAR2(30) |
Name of the index-organized table, if any, to which the overflow or mapping table entry belongs. If the IOT_TYPE column is not NULL, then this column contains the base table name. |
|
STATUS |
VARCHAR2(8) |
If a previous DROP TABLE operation failed, indicates whether the table is unusable (UNUSABLE ) or valid (VALID ) |
|
PCT_FREE |
NUMBER |
Minimum percentage of free space in a block; NULL for partitioned tables | |
PCT_USED |
NUMBER |
Minimum percentage of used space in a block; NULL for partitioned tables | |
INI_TRANS |
NUMBER |
Initial number of transactions; NULL for partitioned tables | |
MAX_TRANS |
NUMBER |
Maximum number of transactions; NULL for partitioned tables | |
INITIAL_EXTENT |
NUMBER |
Size of the initial extent (in bytes); NULL for partitioned tables | |
NEXT_EXTENT |
NUMBER |
Size of secondary extents (in bytes); NULL for partitioned tables | |
MIN_EXTENTS |
NUMBER |
Minimum number of extents allowed in the segment; NULL for partitioned tables | |
MAX_EXTENTS |
NUMBER |
Maximum number of extents allowed in the segment; NULL for partitioned tables | |
PCT_INCREASE |
NUMBER |
Percentage increase in extent size; NULL for partitioned tables | |
FREELISTS |
NUMBER |
Number of process freelists allocated to the segment; NULL for partitioned tables | |
FREELIST_GROUPS |
NUMBER |
Number of freelist groups allocated to the segment; NULL for partitioned tables | |
LOGGING |
VARCHAR2(3) |
Indicates whether or not changes to the table are logged:
|
|
BACKED_UP |
VARCHAR2(1) |
Indicates whether the table has been backed up since the last modification (Y ) or not (N ) |
|
NUM_ROWS |
NUMBER |
Number of rows in the table | |
BLOCKS |
NUMBER |
Number of used blocks in the table | |
EMPTY_BLOCKS |
NUMBER |
Number of empty (never used) blocks in the table | |
AVG_SPACE |
NUMBER |
Average available free space in the table | |
CHAIN_CNT |
NUMBER |
Number of chained rows in the table | |
AVG_ROW_LEN |
NUMBER |
Average row length, including row overhead | |
AVG_SPACE_FREELIST_BLOCKS |
NUMBER |
Average free space of all blocks on a freelist | |
NUM_FREELIST_BLOCKS |
NUMBER |
Number of blocks on the freelist | |
DEGREE |
VARCHAR2(10) |
Number of parallel execution processes per instance for scanning the table, or DEFAULT |
|
INSTANCES |
VARCHAR2(10) |
Number of instances across which the table is to be scanned, or DEFAULT |
|
CACHE |
VARCHAR2(5) |
Indicates whether the table is to be cached in the buffer cache (Y ) or not (N ) |
|
TABLE_LOCK |
VARCHAR2(8) |
Indicates whether table locking is enabled (ENABLED ) or disabled (DISABLED ) |
|
SAMPLE_SIZE |
NUMBER |
Sample size used in analyzing this table | |
LAST_ANALYZED |
DATE |
Date on which this table was most recently analyzed | |
PARTITIONED |
VARCHAR2(3) |
Indicates whether the table is partitioned (YES ) or not (NO ) |
|
IOT_TYPE |
VARCHAR2(12) |
If the table is an index-organized table, then IOT_TYPE is IOT , IOT_OVERFLOW , or IOT_MAPPING . If the table is not an index-organized table, then IOT_TYPE is NULL. |
|
OBJECT_ID_TYPE |
VARCHAR2(16) |
Indicates whether the object ID (OID) is USER-DEFINED or SYSTEM GENERATED |
|
TABLE_TYPE_OWNER |
VARCHAR2(30) |
Owner of the type of the table | |
TABLE_TYPE |
VARCHAR2(30) |
Type of the table | |
TEMPORARY |
VARCHAR2(1) |
Indicates whether this is a temporary table (Y ) or not (N ) |
|
SECONDARY |
VARCHAR2(1) |
Indicates whether the object table is a secondary object created by the ODCIIndexCreate method of the Oracle Data Cartridge (Y ) or not (N ) |
|
NESTED |
VARCHAR2(3) |
Indicates whether the table is a nested table (YES ) or not (NO ) |
|
BUFFER_POOL |
VARCHAR2(7) |
Buffer pool to be used for table blocks:
|
|
FLASH_CACHE |
VARCHAR2(7) |
Database Smart Flash Cache hint to be used for table blocks:
Solaris and Oracle Linux functionality only. |
|
CELL_FLASH_CACHE |
VARCHAR2(7) |
Cell flash cache hint to be used for table blocks:
See Also: Oracle Exadata Storage Server Software documentation for more information |
|
ROW_MOVEMENT |
VARCHAR2(8) |
Indicates whether partitioned row movement is enabled (ENABLED ) or disabled (DISABLED ) |
|
GLOBAL_STATS |
VARCHAR2(3) |
For partitioned tables, indicates whether statistics for the table as a whole (global statistics) are accurate (YES ) or whether they were not collected and have to be estimated from statistics on underlying partitions and subpartitions (NO ) |
|
USER_STATS |
VARCHAR2(3) |
Indicates whether statistics were entered directly by the user (YES ) or not (NO ) |
|
DURATION |
VARCHAR2(15) |
Indicates the duration of a temporary table:
Null - Permanent table |
|
SKIP_CORRUPT |
VARCHAR2(8) |
Indicates whether Oracle Database ignores blocks marked corrupt during table and index scans (ENABLED ) or raises an error (DISABLED ). To enable this feature, run the DBMS_REPAIR .SKIP_CORRUPT_BLOCKS procedure. |
|
MONITORING |
VARCHAR2(3) |
Indicates whether the table has the MONITORING attribute set (YES ) or not (NO ) |
|
CLUSTER_OWNER |
VARCHAR2(30) |
Owner of the cluster, if any, to which the table belongs | |
DEPENDENCIES |
VARCHAR2(8) |
Indicates whether row-level dependency tracking is enabled (ENABLED ) or disabled (DISABLED ) |
|
COMPRESSION |
VARCHAR2(8) |
Indicates whether table compression is enabled (ENABLED ) or not (DISABLED ); NULL for partitioned tables |
|
COMPRESS_FOR |
VARCHAR2(12) |
Default compression for what kind of operations: | |
DROPPED |
VARCHAR2(3) |
Indicates whether the table has been dropped and is in the recycle bin (YES ) or not (NO ); NULL for partitioned tables |
|
SEGMENT_CREATED |
VARCHAR2(3) |
Indicates whether the table segment has been created (YES ) or not (NO ) |
Footnote 1 Hybrid Columnar Compression is a feature of the Enterprise Edition of Oracle Database that is dependent on the underlying storage system. See Oracle Database Concepts for more information.
See Also: