RFC from Sap R/3 to IBM Mainframe...

Question

I should create an RFC from R/3 based on Unix sistem/Oracle to a Mainframe system.....
Any advise on that ?
I never created rfc like that....
thanks and regards

Answer 1

Hi Mauro,
Below is the steps to connect to an external MS-SQL server from ABAP... similarly, you can explore connecting to a mainframe...
Regards,
Raj
Connecting to an External database from SAP
<b>Step 1</b>: Create an entry for the External database in DBCON table using Trxn: DBCA.
Table: DBCON (Description of Database Connections)
Field Name     Description           Value (For: E.g.:)
CON_NAME     Logical name for a      RAJ
database connection     
DBMS     Database system     MSS
USER_NAME     Database user     <username>
PASSWORD     Password for setting up the connection to the database     <pwd>/<pwd>
CON_ENV     Database-specific information for a database connection     MSSQL_SERVER=depotserver MSSQL_DBNAME=HOF_INDORE
DB_RECO     Availability type for an open database connect     
<b>Step 2</b>: Now you can write code to connect to the external database…
<b>Your Sample code can be something like this……</b>
FUNCTION-POOL z_houston.                    "MESSAGE-ID ..
DATA: BEGIN OF wa,
c_locid(3),
c_locname(50),
c_locstate(5),
END OF wa.
FUNCTION z_houston_connect.
""Local interface:
  EXEC SQL.
    CONNECT TO 'RAJ' AS 'V'
  ENDEXEC.
  EXEC SQL.
    SET CONNECTION 'V'
  ENDEXEC.
*- Get the data from MS-SQL Server
  EXEC SQL.
    open C1 for
      select
          loc_id,
          loc_name,
          loc_state
      from ho_loc_mast
  ENDEXEC.
  DO.
    EXEC SQL.
      FETCH NEXT C1 into :wa-c_locid, :wa-c_locname, :wa-c_locstate
    ENDEXEC.
    IF sy-subrc = 0.
      PERFORM loop_output.
    ELSE.
      EXIT.
    ENDIF.
  ENDDO.
  EXEC SQL.
    CLOSE C1
  ENDEXEC.
ENDFUNCTION.
*&      Form  LOOP_OUTPUT
      Output
FORM loop_output .
  WRITE: /5 wa-c_locid, 10 wa-c_locname, 65 wa-c_locstate.
  CLEAR wa.
ENDFORM.                    " LOOP_OUTPUT