ABAP Select data from SAP table /ACCGO/S_DGR_MASTER_DATA_DISP into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /ACCGO/S_DGR_MASTER_DATA_DISP 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 /ACCGO/S_DGR_MASTER_DATA_DISP. 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 /ACCGO/S_DGR_MASTER_DATA_DISP 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_/ACCGO/S_DGR_MASTER_DATA_DISP TYPE STANDARD TABLE OF /ACCGO/S_DGR_MASTER_DATA_DISP,
      WA_/ACCGO/S_DGR_MASTER_DATA_DISP TYPE /ACCGO/S_DGR_MASTER_DATA_DISP,
      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: </ACCGO/S_DGR_MASTER_DATA_DISP> TYPE /ACCGO/S_DGR_MASTER_DATA_DISP.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /ACCGO/S_DGR_MASTER_DATA_DISP
*  INTO TABLE @DATA(IT_/ACCGO/S_DGR_MASTER_DATA_DISP2).
*--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_/ACCGO/S_DGR_MASTER_DATA_DISP INDEX 1 INTO DATA(WA_/ACCGO/S_DGR_MASTER_DATA_DISP2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
</ACCGO/S_DGR_MASTER_DATA_DISP>-PRODUCTION_SERVICE = 1.
</ACCGO/S_DGR_MASTER_DATA_DISP>-PRODUCTION_SERVICE_TYPE = 1.
</ACCGO/S_DGR_MASTER_DATA_DISP>-SHRINK = 1.
</ACCGO/S_DGR_MASTER_DATA_DISP>-LOSS = 1.
</ACCGO/S_DGR_MASTER_DATA_DISP>-POSTING = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/ACCGO/S_DGR_MASTER_DATA_DISP-POSITIVE_GM, sy-vline,
  WA_/ACCGO/S_DGR_MASTER_DATA_DISP-NEGATIVE_GM, sy-vline,
  WA_/ACCGO/S_DGR_MASTER_DATA_DISP-VALID_FROM, sy-vline,
  WA_/ACCGO/S_DGR_MASTER_DATA_DISP-VALID_TO, sy-vline,
  WA_/ACCGO/S_DGR_MASTER_DATA_DISP-SCHEDULE_ID, sy-vline,
  WA_/ACCGO/S_DGR_MASTER_DATA_DISP-VERSION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/ACCGO/S_DGR_MASTER_DATA_DISP 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_/ACCGO/S_DGR_MASTER_DATA_DISP 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_/ACCGO/S_DGR_MASTER_DATA_DISP INTO WA_/ACCGO/S_DGR_MASTER_DATA_DISP.


*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_/ACCGO/S_DGR_MASTER_DATA_DISP_STR, 
PRODUCTION_SERVICE TYPE STRING,
PRODUCTION_SERVICE_TYPE TYPE STRING,
SHRINK TYPE STRING,
LOSS TYPE STRING,
POSTING TYPE STRING,
POSITIVE_GM TYPE STRING,
NEGATIVE_GM TYPE STRING,
VALID_FROM TYPE STRING,
VALID_TO TYPE STRING,
SCHEDULE_ID TYPE STRING,
VERSION TYPE STRING,
NEG_REASON TYPE STRING,
POS_REASON TYPE STRING,
DESCRIPTION TYPE STRING,
LOSS_PERCENTAGE TYPE STRING,
HLR_EVENT_SHRINK TYPE STRING,
HLR_EVENT_LOSS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/ACCGO/S_DGR_MASTER_DATA_DISP_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_/ACCGO/S_DGR_MASTER_DATA_DISP_STR-PRODUCTION_SERVICE sy-vline 
WA_/ACCGO/S_DGR_MASTER_DATA_DISP_STR-PRODUCTION_SERVICE_TYPE sy-vline 
WA_/ACCGO/S_DGR_MASTER_DATA_DISP_STR-SHRINK sy-vline 
WA_/ACCGO/S_DGR_MASTER_DATA_DISP_STR-LOSS sy-vline 
WA_/ACCGO/S_DGR_MASTER_DATA_DISP_STR-POSTING sy-vline 
WA_/ACCGO/S_DGR_MASTER_DATA_DISP_STR-POSITIVE_GM sy-vline 
WA_/ACCGO/S_DGR_MASTER_DATA_DISP_STR-NEGATIVE_GM sy-vline 
WA_/ACCGO/S_DGR_MASTER_DATA_DISP_STR-VALID_FROM sy-vline 
WA_/ACCGO/S_DGR_MASTER_DATA_DISP_STR-VALID_TO sy-vline 
WA_/ACCGO/S_DGR_MASTER_DATA_DISP_STR-SCHEDULE_ID sy-vline 
WA_/ACCGO/S_DGR_MASTER_DATA_DISP_STR-VERSION sy-vline 
WA_/ACCGO/S_DGR_MASTER_DATA_DISP_STR-NEG_REASON sy-vline 
WA_/ACCGO/S_DGR_MASTER_DATA_DISP_STR-POS_REASON sy-vline 
WA_/ACCGO/S_DGR_MASTER_DATA_DISP_STR-DESCRIPTION sy-vline 
WA_/ACCGO/S_DGR_MASTER_DATA_DISP_STR-LOSS_PERCENTAGE sy-vline 
WA_/ACCGO/S_DGR_MASTER_DATA_DISP_STR-HLR_EVENT_SHRINK sy-vline 
WA_/ACCGO/S_DGR_MASTER_DATA_DISP_STR-HLR_EVENT_LOSS sy-vline      INTO ld_text SEPARATED BY SPACE.

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