1  –  DEFAULT

    Requests that Oracle Rdb use the DEFAULT expression defined for
    the parameter. The DEFAULT can be defined for an IN parameter
    during the CREATE MODULE . . . PROCEDURE or ALTER MODULE . . . ADD
    PROCEDURE statements. If no DEFAULT clause exists then the NULL
    expression is assumed.

2  –  procedure-name

    The name of the external or stored procedure being invoked.

3  –  value-expr

    Any value expression except DBKEY or aggregate functions.

    See the Value_Expressions HELP topic for details on value
    expressions.