ABAP Select data from SAP table DIS_GROUP_DATA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DIS_GROUP_DATA
*  INTO TABLE @DATA(IT_DIS_GROUP_DATA2).
*--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_DIS_GROUP_DATA INDEX 1 INTO DATA(WA_DIS_GROUP_DATA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DIS_GROUP_DATA>-GRPNR = 1.
<DIS_GROUP_DATA>-POSID = 1.
<DIS_GROUP_DATA>-POST1 = 1.
<DIS_GROUP_DATA>-WERKS = 1.
<DIS_GROUP_DATA>-KZBWS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DIS_GROUP_DATA-OBJNR, sy-vline,
  WA_DIS_GROUP_DATA-PWPOS, sy-vline,
  WA_DIS_GROUP_DATA-PROFID, sy-vline,
  WA_DIS_GROUP_DATA-ASSINT, sy-vline,
  WA_DIS_GROUP_DATA-ASSEXT, sy-vline,
  WA_DIS_GROUP_DATA-DICOST, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DIS_GROUP_DATA 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_DIS_GROUP_DATA 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_DIS_GROUP_DATA INTO WA_DIS_GROUP_DATA.


*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 ABPSP, internal->external for field GRPNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_DIS_GROUP_DATA-GRPNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DIS_GROUP_DATA-GRPNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSN, internal->external for field POSID
CALL FUNCTION 'CONVERSION_EXIT_ABPSN_OUTPUT'
  EXPORTING
    input =                      WA_DIS_GROUP_DATA-POSID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DIS_GROUP_DATA-POSID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DIS_GROUP_DATA-VERSI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DIS_GROUP_DATA-VERSI.
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_DIS_GROUP_DATA_STR, 
GRPNR TYPE STRING,
POSID TYPE STRING,
POST1 TYPE STRING,
WERKS TYPE STRING,
KZBWS TYPE STRING,
OBJNR TYPE STRING,
PWPOS TYPE STRING,
PROFID TYPE STRING,
ASSINT TYPE STRING,
ASSEXT TYPE STRING,
DICOST TYPE STRING,
DICOMM TYPE STRING,
DICASH TYPE STRING,
DIRA TYPE STRING,
DIEVA TYPE STRING,
DECOST TYPE STRING,
DECOMM TYPE STRING,
DECASH TYPE STRING,
DSTOCK TYPE STRING,
DIVARI TYPE STRING,
DISCRP TYPE STRING,
VERSI TYPE STRING,
KOKRS TYPE STRING,
DILCOMM TYPE STRING,
DILACT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DIS_GROUP_DATA_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_DIS_GROUP_DATA_STR-GRPNR sy-vline 
WA_DIS_GROUP_DATA_STR-POSID sy-vline 
WA_DIS_GROUP_DATA_STR-POST1 sy-vline 
WA_DIS_GROUP_DATA_STR-WERKS sy-vline 
WA_DIS_GROUP_DATA_STR-KZBWS sy-vline 
WA_DIS_GROUP_DATA_STR-OBJNR sy-vline 
WA_DIS_GROUP_DATA_STR-PWPOS sy-vline 
WA_DIS_GROUP_DATA_STR-PROFID sy-vline 
WA_DIS_GROUP_DATA_STR-ASSINT sy-vline 
WA_DIS_GROUP_DATA_STR-ASSEXT sy-vline 
WA_DIS_GROUP_DATA_STR-DICOST sy-vline 
WA_DIS_GROUP_DATA_STR-DICOMM sy-vline 
WA_DIS_GROUP_DATA_STR-DICASH sy-vline 
WA_DIS_GROUP_DATA_STR-DIRA sy-vline 
WA_DIS_GROUP_DATA_STR-DIEVA sy-vline 
WA_DIS_GROUP_DATA_STR-DECOST sy-vline 
WA_DIS_GROUP_DATA_STR-DECOMM sy-vline 
WA_DIS_GROUP_DATA_STR-DECASH sy-vline 
WA_DIS_GROUP_DATA_STR-DSTOCK sy-vline 
WA_DIS_GROUP_DATA_STR-DIVARI sy-vline 
WA_DIS_GROUP_DATA_STR-DISCRP sy-vline 
WA_DIS_GROUP_DATA_STR-VERSI sy-vline 
WA_DIS_GROUP_DATA_STR-KOKRS sy-vline 
WA_DIS_GROUP_DATA_STR-DILCOMM sy-vline 
WA_DIS_GROUP_DATA_STR-DILACT sy-vline      INTO ld_text SEPARATED BY SPACE.

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