Note
This view is available starting with V2.2.30.
Purpose
This view displays the information about the index columns of all tables in the database.
Applicability
This view is applicable only to OceanBase Database in Oracle mode.
Columns
| Column | Type | Nullable | Description |
|---|---|---|---|
| INDEX_OWNER | VARCHAR2(128) | NO | The owner of the index. |
| INDEX_NAME | VARCHAR2(128) | NO | The name of the index. |
| TABLE_OWNER | VARCHAR2(128) | NO | The owner of the table to which the index belongs. |
| TABLE_NAME | VARCHAR2(128) | NO | The name of the table to which the index belongs. |
| COLUMN_NAME | VARCHAR2(4000) | NO | The name of the index column. |
| COLUMN_POSITION | NUMBER | NO | The position of the index column in the index. |
| COLUMN_LENGTH | NUMBER | NO | The length of the index column. |
| CHAR_LENGTH | NUMBER | NO | The character length of the index column. |
| DESCEND | VARCHAR2(4) | NO | Indicates whether the index column is sorted in descending (DESC) or ascending (ASC) order. |
| COLLATED_COLUMN_ID | NUMBER | NO | This column is not supported. It is NULL by default. |
Sample query
Query the information about the index columns of the index table TBL2 in the current tenant.
obclient [SYS]> SELECT * FROM DBA_IND_COLUMNS WHERE TABLE_NAME='TBL2';
The query result is as follows:
+-------------+--------------------------------+-------------+------------+-------------+-----------------+---------------+-------------+---------+--------------------+
| INDEX_OWNER | INDEX_NAME | TABLE_OWNER | TABLE_NAME | COLUMN_NAME | COLUMN_POSITION | COLUMN_LENGTH | CHAR_LENGTH | DESCEND | COLLATED_COLUMN_ID |
+-------------+--------------------------------+-------------+------------+-------------+-----------------+---------------+-------------+---------+--------------------+
| SYS | TBL2_OBUNIQUE_1737535889306073 | SYS | TBL2 | COL1 | 1 | 22 | 0 | ASC | NULL |
| SYS | TBL2_IDX1 | SYS | TBL2 | COL2 | 1 | 22 | 0 | ASC | NULL |
+-------------+--------------------------------+-------------+------------+-------------+-----------------+---------------+-------------+---------+--------------------+
2 rows in set