Hi,
RSBDCSUB - You can start the processing of the sessions using this.
RSBDCBTC - This has something to do with the Queues of the batch input sessions, you cannot start any session using this.
RSBDCSUB is used for executing BDC sessions, e.g. you create BDC sessions in a user exit and want to execute them once every day. You can schedule RSBDCSUB to execute you BDC sessions at a particular time.
Difference b/w RSBDCSUB and RSBDCBTC :
When the program is processed and waiting for the session to be released, if we use RSBDCSUB then the Whole sessions ceated for the program are released at a single go, Whereas if we use RSBDCBTC, each session is givena Unique Session ID and it can be released automatically regardless of the program name.
RSBDCSUB
Processing Sessions Automatically
Use
In most cases, batch input sessions can be processed automatically. It is not necessary for a session to wait until a system administrator explicitly starts the processing of the session.
This section explains how to have sessions started automatically soon after the session has been generated in an R/3 System.
Prerequisites
The ABAP program RSBDCSUB must be scheduled as a periodic job in the R/3 background processing system. RSBDCSUB checks for and starts any batch input sessions that have not yet been run. It schedules such sessions for immediate execution in the background processing system.
Procedure
Schedule RSBDCSUB to run periodically in one or more background jobs.
If you have regularly scheduled batch input runs, you can schedule separate jobs for each of the scheduled data transfers. The start time for the RSBDCSUB job can be set according to the batch input schedule. And you can use a variant to restrict RSBDCSUB only to the batch input sessions that you expect.
With RSBDCSUB, you can use all of the selection criteria offered on the batch input main menu to select sessions to run:
session name
date and time of generation
status: ready to run or held in the queue because of errors
Result
Batch input sessions are started automatically rather than by hand. The RSBDCSUB program can be set up to start all sessions that arrive in an R/3 System, or it can be fine-tuned to start only batch input sessions that you expect.
for RSBDCBTC check the link!!
http://sapabap.iespana.es/sap/oss/0015999.htm
Regards
Sudheer
Bluesky
