Note
This view is available starting with V2.2.30.
Purpose
This view displays the comments of all tables and views in the current tenant.
Applicability
This view is applicable only to OceanBase Database in Oracle-compatible mode.
Columns
| Column | Type | Nullable | Description |
|---|---|---|---|
| OWNER | VARCHAR2(128) | NO | The owner of the table or view. |
| TABLE_NAME | VARCHAR2(128) | NO | The name of the table or view. |
| TABLE_TYPE | VARCHAR2(11) | NO | The type of the object. |
| COMMENTS | VARCHAR2(4000) | NO | The comment of the object. |
Sample query
Query the comments of the STUDENT table in the current tenant.
obclient [SYS]> SELECT * FROM SYS.DBA_TAB_COMMENTS WHERE TABLE_NAME='STUDENT';
The return result is as follows:
+-------+------------+------------+---------------------------+
| OWNER | TABLE_NAME | TABLE_TYPE | COMMENTS |
+-------+------------+------------+---------------------------+
| SYS | STUDENT | TABLE | student information table |
+-------+------------+------------+---------------------------+
1 row in set
References
Query the comments of all tables and views accessible to the current user: ALL_TAB_COMMENTS
Query the comments of all tables and views owned by the current user: USER_TAB_COMMENTS
For more information about how to add comments to a table, see Add comments to schema and non-schema objects.