LDB(Logical Database) selection screen

[Former Member]

Dear Contributors,

I am hopefull for finding solution to my problem from one of you.

My requirement is i would like to pass all the elements of the selection screen of LDB to non-sap application so as they can replicate and show all those parameters there. Once those are filled from there then i need to take them and process the LDB.

My question is i dont know how to get the selection screen parameters. I tried using FM 'RPY_DYNPRO_READ' and passed progname and screen number in that. It gave back all the parameters but we cant co-relate which parameter is from which table (like we say MATNR like MARA-MATNR).

Without having Technical details of field, non-sap application could not able to process it or show the required F4 help etc

Anyone know about it, can guide me....

Regards

Munish Garg

[franois_henrotte]

call function 'LDB_CONVERT_LDBNAME_2_DBPROG'
       exporting  ldb_name             = headsg-logdb "#EC DOM_EQUAL
                  flag_existence_check = space
       importing  db_name              = logdbprog
       exceptions others               = 1.
  if sy-subrc eq 0.
    call function 'SELOPTS_AND_PARAMS'
         exporting  program              = logdbprog
         tables     selpars              = dbselpars
         exceptions program_non_existent = 1
                    subroutine_pool      = 2
                    load_problems        = 3
                    others               = 4.
endif.

[Former Member]

Hi Henrotte/Other,

The FM mentioned by you gives names of the select-options and parameters etc but what about the technical details....Like field-type and field-length etc etc.....

Id there any way to get it?

Regards

Munish garg

[franois_henrotte]

in field DBFIELD of structure SELPARS you will find the reference used for defining the parameter

- if the reference contains a - then it is tabname-fieldname

- if the reference contains a single word then it is the data element or data domain

- if the reference is empty then the parameter has a generic type and you cannot get much information about it

based on this you are able to get all fields attributes using DDIF_* functions