| Item | Description |
| RddRegister() | Registers a user defined Replaceable Database Driver (RDD). |
| UsrRdd_AreaData() | Queries or attaches user-defined data to a work area of a user-defined RDD. |
| UsrRdd_AreaResult() | Queries the result of the last operation of a user-defined RDD. |
| UsrRdd_ID() | Queries the ID of a user-defined RDD. |
| UsrRdd_RddData() | Queries or attaches user-defined data a user-defined RDD. |
| UsrRdd_SetBof() | Sets the BoF() flag in a work area of a user-defined RDD. |
| UsrRdd_SetBottom() | Defines the bottom scope value for a work area of a user-defined RDD. |
| UsrRdd_SetEof() | Sets the Eof() flag in a work area of a user-defined RDD. |
| UsrRdd_SetFound() | Sets the Found() flag in a work area of a user-defined RDD. |
| UsrRdd_SetTop() | Defines the top value for a work area of a user-defined RDD. |
