ABAP Select data from SAP table BGRFC_DESTINATION_RESOURCE into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP BGRFC_DESTINATION_RESOURCE 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 BGRFC_DESTINATION_RESOURCE. 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 BGRFC_DESTINATION_RESOURCE 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_BGRFC_DESTINATION_RESOURCE TYPE STANDARD TABLE OF BGRFC_DESTINATION_RESOURCE,
      WA_BGRFC_DESTINATION_RESOURCE TYPE BGRFC_DESTINATION_RESOURCE,
      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: <BGRFC_DESTINATION_RESOURCE> TYPE BGRFC_DESTINATION_RESOURCE.

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

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM BGRFC_DESTINATION_RESOURCE
  INTO TABLE IT_BGRFC_DESTINATION_RESOURCE.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM BGRFC_DESTINATION_RESOURCE
*  INTO TABLE @DATA(IT_BGRFC_DESTINATION_RESOURCE2).
*--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_BGRFC_DESTINATION_RESOURCE INDEX 1 INTO DATA(WA_BGRFC_DESTINATION_RESOURCE2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_BGRFC_DESTINATION_RESOURCE ASSIGNING <BGRFC_DESTINATION_RESOURCE>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<BGRFC_DESTINATION_RESOURCE>-OUTBOUND_UNIT_ID = 1.
<BGRFC_DESTINATION_RESOURCE>-OUTBOUND_QUEUE_ID = 1.
<BGRFC_DESTINATION_RESOURCE>-INBOUND_UNIT_ID = 1.
<BGRFC_DESTINATION_RESOURCE>-INBOUND_QUEUE_ID = 1.
<BGRFC_DESTINATION_RESOURCE>-UNIT_SIZE = 1.

ENDLOOP.

LOOP AT IT_BGRFC_DESTINATION_RESOURCE INTO WA_BGRFC_DESTINATION_RESOURCE.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_BGRFC_DESTINATION_RESOURCE-RFC_OPTIONS, sy-vline,
  WA_BGRFC_DESTINATION_RESOURCE-RFCHOST, sy-vline,
  WA_BGRFC_DESTINATION_RESOURCE-RFCSERVICE, sy-vline,
  WA_BGRFC_DESTINATION_RESOURCE-RFCALIAS, sy-vline,
  WA_BGRFC_DESTINATION_RESOURCE-RFCCLIENT, sy-vline,
  WA_BGRFC_DESTINATION_RESOURCE-RFCUSER, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_BGRFC_DESTINATION_RESOURCE 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_BGRFC_DESTINATION_RESOURCE 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_BGRFC_DESTINATION_RESOURCE INTO WA_BGRFC_DESTINATION_RESOURCE.


*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.

*Conversion exit ISOLA, internal->external for field RFCLANG
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_BGRFC_DESTINATION_RESOURCE-RFCLANG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_BGRFC_DESTINATION_RESOURCE-RFCLANG.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

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

TYPES: BEGIN OF T_BGRFC_DESTINATION_RESOURCE_STR, 
OUTBOUND_UNIT_ID TYPE STRING,
OUTBOUND_QUEUE_ID TYPE STRING,
INBOUND_UNIT_ID TYPE STRING,
INBOUND_QUEUE_ID TYPE STRING,
UNIT_SIZE TYPE STRING,
RFC_OPTIONS TYPE STRING,
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,
RFCWAN TYPE STRING,
RFCUNICODE TYPE STRING,
RFCCONVERT TYPE STRING,
RFCCONVX TYPE STRING,
RFCBITMAP TYPE STRING,
AUTHORITY TYPE STRING,
RFCREST TYPE STRING,
SAVESERVER TYPE STRING,
CPICTIMEOUT TYPE STRING,
KEEPALIVETIMEOUT TYPE STRING,
TRACEPROPAGATION TYPE STRING,
STARTTYPE TYPE STRING,
RFCSERIAL TYPE STRING,
QRFCVERS TYPE STRING,
RFCEXT TYPE STRING,
STATISTIC TYPE STRING,
SERVER_NAME TYPE STRING,
RESOURCE_NUMBER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_BGRFC_DESTINATION_RESOURCE_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_BGRFC_DESTINATION_RESOURCE_STR-OUTBOUND_UNIT_ID sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-OUTBOUND_QUEUE_ID sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-INBOUND_UNIT_ID sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-INBOUND_QUEUE_ID sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-UNIT_SIZE sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFC_OPTIONS sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCHOST sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCSERVICE sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCALIAS sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCCLIENT sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCUSER sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCLANG sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCCOMPRES sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCSCRAMBL sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCNOKEEP sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCEXIT sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCNOWAIT sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCAUTH sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCTRACE sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCPWSCR sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCEXEC sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCGWHOST sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCGWSERV sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCSYSID sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCKEEP sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-BTCSUPPR sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-BTCTRIES sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-BTCDELAY sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCLBFLAG sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCSAMEUSR sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCARFCOPT sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCSLOGIN sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCTSYSOPT sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCSNC sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCINFO sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCWAN sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCUNICODE sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCCONVERT sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCCONVX sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCBITMAP sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-AUTHORITY sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCREST sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-SAVESERVER sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-CPICTIMEOUT sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-KEEPALIVETIMEOUT sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-TRACEPROPAGATION sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-STARTTYPE sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCSERIAL sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-QRFCVERS sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RFCEXT sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-STATISTIC sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-SERVER_NAME sy-vline 
WA_BGRFC_DESTINATION_RESOURCE_STR-RESOURCE_NUMBER sy-vline      INTO ld_text SEPARATED BY SPACE.

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