Connection parameters
are used in the RfcOpenEx() call to log on to the SAP system. With
this option, you can pass parameters that are not SAP LIBNAME options
to the RfcOpenEx() call.
Example: RFC_STRING Example
RFC_STRING = "ABAP_DEBUG=1"
Note: When using RFC_STRING="ABAP_DEBUG=1",
the ABAP debugger is invoked to debug the ABAP programs used by the
engine. The SAP GUI on the SAS RFC Server host is required to use
the ABAP_DEBUG=1 option.