ABAP Select data from SAP table /SDF/RFCOPT into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /SDF/RFCOPT table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to /SDF/RFCOPT. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the /SDF/RFCOPT table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_/SDF/RFCOPT TYPE STANDARD TABLE OF /SDF/RFCOPT,
      WA_/SDF/RFCOPT TYPE /SDF/RFCOPT,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: </SDF/RFCOPT> TYPE /SDF/RFCOPT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/SDF/RFCOPT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /SDF/RFCOPT
  INTO TABLE IT_/SDF/RFCOPT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /SDF/RFCOPT
*  INTO TABLE @DATA(IT_/SDF/RFCOPT2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_/SDF/RFCOPT INDEX 1 INTO DATA(WA_/SDF/RFCOPT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/SDF/RFCOPT ASSIGNING </SDF/RFCOPT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</SDF/RFCOPT>-RFCHOST = 1.
</SDF/RFCOPT>-RFCSERVICE = 1.
</SDF/RFCOPT>-RFCALIAS = 1.
</SDF/RFCOPT>-RFCCLIENT = 1.
</SDF/RFCOPT>-RFCUSER = 1.

ENDLOOP.

LOOP AT IT_/SDF/RFCOPT INTO WA_/SDF/RFCOPT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/SDF/RFCOPT-RFCLANG, sy-vline,
  WA_/SDF/RFCOPT-RFCCOMPRES, sy-vline,
  WA_/SDF/RFCOPT-RFCSCRAMBL, sy-vline,
  WA_/SDF/RFCOPT-RFCNOKEEP, sy-vline,
  WA_/SDF/RFCOPT-RFCEXIT, sy-vline,
  WA_/SDF/RFCOPT-RFCNOWAIT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/SDF/RFCOPT you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_/SDF/RFCOPT TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_/SDF/RFCOPT INTO WA_/SDF/RFCOPT.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_/SDF/RFCOPT_STR, 
RFCHOST TYPE STRING,
RFCSERVICE TYPE STRING,
RFCALIAS TYPE STRING,
RFCCLIENT TYPE STRING,
RFCUSER TYPE STRING,
RFCLANG TYPE STRING,
RFCCOMPRES TYPE STRING,
RFCSCRAMBL TYPE STRING,
RFCNOKEEP TYPE STRING,
RFCEXIT TYPE STRING,
RFCNOWAIT TYPE STRING,
RFCAUTH TYPE STRING,
RFCTRACE TYPE STRING,
RFCPWSCR TYPE STRING,
RFCEXEC TYPE STRING,
RFCGWHOST TYPE STRING,
RFCGWSERV TYPE STRING,
RFCSYSID TYPE STRING,
RFCKEEP TYPE STRING,
BTCSUPPR TYPE STRING,
BTCTRIES TYPE STRING,
BTCDELAY TYPE STRING,
RFCLBFLAG TYPE STRING,
RFCSAMEUSR TYPE STRING,
RFCARFCOPT TYPE STRING,
RFCSLOGIN TYPE STRING,
RFCTSYSOPT TYPE STRING,
RFCSNC TYPE STRING,
RFCINFO TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/SDF/RFCOPT_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_/SDF/RFCOPT_STR-RFCHOST sy-vline 
WA_/SDF/RFCOPT_STR-RFCSERVICE sy-vline 
WA_/SDF/RFCOPT_STR-RFCALIAS sy-vline 
WA_/SDF/RFCOPT_STR-RFCCLIENT sy-vline 
WA_/SDF/RFCOPT_STR-RFCUSER sy-vline 
WA_/SDF/RFCOPT_STR-RFCLANG sy-vline 
WA_/SDF/RFCOPT_STR-RFCCOMPRES sy-vline 
WA_/SDF/RFCOPT_STR-RFCSCRAMBL sy-vline 
WA_/SDF/RFCOPT_STR-RFCNOKEEP sy-vline 
WA_/SDF/RFCOPT_STR-RFCEXIT sy-vline 
WA_/SDF/RFCOPT_STR-RFCNOWAIT sy-vline 
WA_/SDF/RFCOPT_STR-RFCAUTH sy-vline 
WA_/SDF/RFCOPT_STR-RFCTRACE sy-vline 
WA_/SDF/RFCOPT_STR-RFCPWSCR sy-vline 
WA_/SDF/RFCOPT_STR-RFCEXEC sy-vline 
WA_/SDF/RFCOPT_STR-RFCGWHOST sy-vline 
WA_/SDF/RFCOPT_STR-RFCGWSERV sy-vline 
WA_/SDF/RFCOPT_STR-RFCSYSID sy-vline 
WA_/SDF/RFCOPT_STR-RFCKEEP sy-vline 
WA_/SDF/RFCOPT_STR-BTCSUPPR sy-vline 
WA_/SDF/RFCOPT_STR-BTCTRIES sy-vline 
WA_/SDF/RFCOPT_STR-BTCDELAY sy-vline 
WA_/SDF/RFCOPT_STR-RFCLBFLAG sy-vline 
WA_/SDF/RFCOPT_STR-RFCSAMEUSR sy-vline 
WA_/SDF/RFCOPT_STR-RFCARFCOPT sy-vline 
WA_/SDF/RFCOPT_STR-RFCSLOGIN sy-vline 
WA_/SDF/RFCOPT_STR-RFCTSYSOPT sy-vline 
WA_/SDF/RFCOPT_STR-RFCSNC sy-vline 
WA_/SDF/RFCOPT_STR-RFCINFO sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.