ABAP Select data from SAP table CRMS_DM_BP_DS_DUNN_HDR_GUI into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRMS_DM_BP_DS_DUNN_HDR_GUI
*  INTO TABLE @DATA(IT_CRMS_DM_BP_DS_DUNN_HDR_GUI2).
*--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_CRMS_DM_BP_DS_DUNN_HDR_GUI INDEX 1 INTO DATA(WA_CRMS_DM_BP_DS_DUNN_HDR_GUI2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRMS_DM_BP_DS_DUNN_HDR_GUI>-LAUFD = 1.
<CRMS_DM_BP_DS_DUNN_HDR_GUI>-LAUFI = 1.
<CRMS_DM_BP_DS_DUNN_HDR_GUI>-AUSDT = 1.
<CRMS_DM_BP_DS_DUNN_HDR_GUI>-WAERS = 1.
<CRMS_DM_BP_DS_DUNN_HDR_GUI>-MSALM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRMS_DM_BP_DS_DUNN_HDR_GUI-MGE1M, sy-vline,
  WA_CRMS_DM_BP_DS_DUNN_HDR_GUI-MGE2M, sy-vline,
  WA_CRMS_DM_BP_DS_DUNN_HDR_GUI-MGE3M, sy-vline,
  WA_CRMS_DM_BP_DS_DUNN_HDR_GUI-MINTM, sy-vline,
  WA_CRMS_DM_BP_DS_DUNN_HDR_GUI-XMSTO, sy-vline,
  WA_CRMS_DM_BP_DS_DUNN_HDR_GUI-STRAT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRMS_DM_BP_DS_DUNN_HDR_GUI 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_CRMS_DM_BP_DS_DUNN_HDR_GUI 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_CRMS_DM_BP_DS_DUNN_HDR_GUI INTO WA_CRMS_DM_BP_DS_DUNN_HDR_GUI.


*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_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR, 
LAUFD TYPE STRING,
LAUFI TYPE STRING,
AUSDT TYPE STRING,
WAERS TYPE STRING,
MSALM TYPE STRING,
MGE1M TYPE STRING,
MGE2M TYPE STRING,
MGE3M TYPE STRING,
MINTM TYPE STRING,
XMSTO TYPE STRING,
STRAT TYPE STRING,
STRATTEXT TYPE STRING,
STEP TYPE STRING,
STEPTEXT TYPE STRING,
STEP_LAST TYPE STRING,
STEP_LASTTEXT TYPE STRING,
SUCPC TYPE STRING,
SUCDT TYPE STRING,
SCDST TYPE STRING,
SCDSTTEXT TYPE STRING,
SCORE TYPE STRING,
RANK TYPE STRING,
RC_USER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_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_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-LAUFD sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-LAUFI sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-AUSDT sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-WAERS sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-MSALM sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-MGE1M sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-MGE2M sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-MGE3M sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-MINTM sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-XMSTO sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-STRAT sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-STRATTEXT sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-STEP sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-STEPTEXT sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-STEP_LAST sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-STEP_LASTTEXT sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-SUCPC sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-SUCDT sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-SCDST sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-SCDSTTEXT sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-SCORE sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-RANK sy-vline 
WA_CRMS_DM_BP_DS_DUNN_HDR_GUI_STR-RC_USER sy-vline      INTO ld_text SEPARATED BY SPACE.

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