Calling the same LDB with different selection screens

Question

I have a program that uses the Logical db F1S. That means that it can use an automatic magical include with the name DBF1SSEL.

So let's say i have 2 programs that need to use the logical database F1S. Would they be able to have 2 selection screens, or would they all have to use the DBF1SSEL one?

Or how does this automatic name binding-conversion-thingy work? (i'm a java guy learning abap)

Thx, you guys rule!

Answer 1

N.b. I'm not up to scratch on LDBs, have only used them a couple of times.

The selection screen that appears depends on the NODES from the LDB that you specify for use in the program, see SAP docs. So if your two programs use different sets of nodes, you will potentially get different selection screens (but still built up automatically). I think you can additionally specify manual selection screen elements too.

Answer 2

Another way of calling LDB is through FM LDB_PROCESS. It accepts SELECTIONS parameter which is used for selection criteria specification.

Consider this sample:

* Populate selection-fields
 clear seltab[].
 clear wa_seltab.
 wa_seltab-kind = 'S'.
 wa_seltab-selname = 'CARRID'.
 LOOP AT CARRID INTO wa_carrid.
   MOVE-CORRESPONDING wa_carrid TO wa_seltab.
   APPEND wa_seltab TO seltab.
 ENDLOOP.

* Process the logical database
CALL FUNCTION 'LDB_PROCESS'
 EXPORTING
   ldbname = 'F1S'
   variant = ''
 TABLES
   callback = callback
   selections = seltab[]
   exceptions
 OTHERS = 4.
END-OF-SELECTION.