HS_FDS_CLASS contains information about legal non-Oracle (FDS) classes.
| Column | Datatype | NULL | Description | 
|---|---|---|---|
| FDS_CLASS_NAME | VARCHAR2(30) | NOT NULL | Name of the FDS class (for example, ODBC, DB2) | 
| FDS_CLASS _COMMENTS | VARCHAR2(255) | Text description of the non-Oracle class | |
| FDS_CLASS_ID | NUMBER |  NOT NULL | Sequence: a counter that is incremented for every row inserted (used internally) |