Opens a stream that has been declared previously with the
    DECLARE_STREAM statement. A declared START_STREAM statement
    allows you to place the elements of the START_STREAM statement
    in any order within the program as long as they appear after the
    DECLARE_ STREAM statement and are executed in the order: START_
    STREAM, FETCH, END_STREAM.

    Example

    RDO>  START_STREAM EMP_STREAM