ABAP Select data from SAP table RGBLO 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 RGBLO 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 RGBLO. 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 RGBLO 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_RGBLO TYPE STANDARD TABLE OF RGBLO,
      WA_RGBLO TYPE RGBLO,
      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: <RGBLO> TYPE RGBLO.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RGBLO
*  INTO TABLE @DATA(IT_RGBLO2).
*--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_RGBLO INDEX 1 INTO DATA(WA_RGBLO2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RGBLO>-MANDT = 1.
<RGBLO>-VALUSER = 1.
<RGBLO>-VALEVENT = 1.
<RGBLO>-SUBSCLASS = 1.
<RGBLO>-BOOLCLASS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RGBLO-BOOLID, sy-vline,
  WA_RGBLO-VALID, sy-vline,
  WA_RGBLO-SUBSTID, sy-vline,
  WA_RGBLO-MSGID, sy-vline,
  WA_RGBLO-BOOLTEXT, sy-vline,
  WA_RGBLO-VALTEXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RGBLO 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_RGBLO 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_RGBLO INTO WA_RGBLO.


*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 ALPHA, internal->external for field SUBSCLASS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RGBLO-SUBSCLASS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGBLO-SUBSCLASS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BOOLCLASS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RGBLO-BOOLCLASS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGBLO-BOOLCLASS.
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_RGBLO_STR, 
MANDT TYPE STRING,
VALUSER TYPE STRING,
VALEVENT TYPE STRING,
SUBSCLASS TYPE STRING,
BOOLCLASS TYPE STRING,
BOOLID TYPE STRING,
VALID TYPE STRING,
SUBSTID TYPE STRING,
MSGID TYPE STRING,
BOOLTEXT TYPE STRING,
VALTEXT TYPE STRING,
SUBTEXT TYPE STRING,
VALUSERTXT TYPE STRING,
VALEVENTXT TYPE STRING,
BOOLPROTO TYPE STRING,
VALIDPROTO TYPE STRING,
SUBSTPROTO TYPE STRING,
BOOLNICKNM TYPE STRING,
BOOLNICKTP TYPE STRING,
BOOLEXPSRC TYPE STRING,
FLDDESCSRC TYPE STRING,
EXITSUBSRC TYPE STRING,
SUBSVALSRC TYPE STRING,
VALSEVERE TYPE STRING,
VALMSG TYPE STRING,
AUTHGR TYPE STRING,
SETS TYPE STRING,
GB93 TYPE STRING,
GB92 TYPE STRING,
GB90 TYPE STRING,
T100 TYPE STRING,
MSAD TYPE STRING,
GB01 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RGBLO_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_RGBLO_STR-MANDT sy-vline 
WA_RGBLO_STR-VALUSER sy-vline 
WA_RGBLO_STR-VALEVENT sy-vline 
WA_RGBLO_STR-SUBSCLASS sy-vline 
WA_RGBLO_STR-BOOLCLASS sy-vline 
WA_RGBLO_STR-BOOLID sy-vline 
WA_RGBLO_STR-VALID sy-vline 
WA_RGBLO_STR-SUBSTID sy-vline 
WA_RGBLO_STR-MSGID sy-vline 
WA_RGBLO_STR-BOOLTEXT sy-vline 
WA_RGBLO_STR-VALTEXT sy-vline 
WA_RGBLO_STR-SUBTEXT sy-vline 
WA_RGBLO_STR-VALUSERTXT sy-vline 
WA_RGBLO_STR-VALEVENTXT sy-vline 
WA_RGBLO_STR-BOOLPROTO sy-vline 
WA_RGBLO_STR-VALIDPROTO sy-vline 
WA_RGBLO_STR-SUBSTPROTO sy-vline 
WA_RGBLO_STR-BOOLNICKNM sy-vline 
WA_RGBLO_STR-BOOLNICKTP sy-vline 
WA_RGBLO_STR-BOOLEXPSRC sy-vline 
WA_RGBLO_STR-FLDDESCSRC sy-vline 
WA_RGBLO_STR-EXITSUBSRC sy-vline 
WA_RGBLO_STR-SUBSVALSRC sy-vline 
WA_RGBLO_STR-VALSEVERE sy-vline 
WA_RGBLO_STR-VALMSG sy-vline 
WA_RGBLO_STR-AUTHGR sy-vline 
WA_RGBLO_STR-SETS sy-vline 
WA_RGBLO_STR-GB93 sy-vline 
WA_RGBLO_STR-GB92 sy-vline 
WA_RGBLO_STR-GB90 sy-vline 
WA_RGBLO_STR-T100 sy-vline 
WA_RGBLO_STR-MSAD sy-vline 
WA_RGBLO_STR-GB01 sy-vline      INTO ld_text SEPARATED BY SPACE.

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