This view displays the columns in dynamic performance tables that are indexed (X$ tables). The X$ tables can change without notice. Use this view only to write queries against fixed views (V$ views) more efficiently.
| Column | Datatype | Description |
|---|---|---|
TABLE_NAME |
VARCHAR2(30) |
Name of the dynamic performance table that is indexed |
INDEX_NUMBER |
NUMBER |
Number that distinguishes to which index a column belongs |
COLUMN_NAME |
VARCHAR2(30) |
Name of the column that is being indexed |
COLUMN_POSITION |
NUMBER |
Position of the column in the index key (this is mostly relevant for multicolumn indexes) |