ALL_IND_EXPRESSIONS describes the expressions of function-based indexes on tables accessible to the current user.
DBA_IND_EXPRESSIONS describes the expressions of all function-based indexes in the database.
USER_IND_EXPRESSIONS describes the expressions of function-based indexes on tables owned by the current user. This view does not display the INDEX_OWNER or TABLE_OWNER columns.
| Column | Datatype | NULL | Description | 
|---|---|---|---|
| INDEX_OWNER | VARCHAR2(30) | NOT NULL | Owner of the index | 
| INDEX_NAME | VARCHAR2(30) | NOT NULL | Name of the index | 
| TABLE_OWNER | VARCHAR2(30) | NOT NULL | Owner of the table or cluster | 
| TABLE_NAME | VARCHAR2(30) | NOT NULL | Name of the table or cluster | 
| COLUMN_EXPRESSION | LONG | Function-based index expression defining the column | |
| COLUMN_POSITION | NUMBER | NOT NULL | Position of the column or attribute within the index |