ABAP Data Flow vs Normal Data Flow to extract data from SAP tables

One can extract data from SAP tables ( e.g KNA1 or MARA) directly using a simple data flow or one can also use a ABAP data flow .

The ABAP data flow is circutious and long drawn , so why would we use ABAP data flow or what scenario's are suited for ABAP data flows ?

Edited by: Rajarshi Muhuri on Nov 21, 2011 4:24 AM

Closing this thread , as I discover that the simple Data Flow has performance penalty when transporting HUGE data sets