ABAP Select data from SAP table DFKKTHI_SUM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKKTHI_SUM
*  INTO TABLE @DATA(IT_DFKKTHI_SUM2).
*--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_DFKKTHI_SUM INDEX 1 INTO DATA(WA_DFKKTHI_SUM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKKTHI_SUM>-MANDT = 1.
<DFKKTHI_SUM>-AGGRF = 1.
<DFKKTHI_SUM>-BUKRS = 1.
<DFKKTHI_SUM>-SUMST = 1.
<DFKKTHI_SUM>-THIDT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKKTHI_SUM-THPRD, sy-vline,
  WA_DFKKTHI_SUM-BCBLN, sy-vline,
  WA_DFKKTHI_SUM-SENID, sy-vline,
  WA_DFKKTHI_SUM-RECID, sy-vline,
  WA_DFKKTHI_SUM-ERDAT, sy-vline,
  WA_DFKKTHI_SUM-ERNAM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKKTHI_SUM 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_DFKKTHI_SUM 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_DFKKTHI_SUM INTO WA_DFKKTHI_SUM.


*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 AGGRF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFKKTHI_SUM-AGGRF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKTHI_SUM-AGGRF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BCBLN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFKKTHI_SUM-BCBLN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKTHI_SUM-BCBLN.
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_DFKKTHI_SUM_STR, 
MANDT TYPE STRING,
AGGRF TYPE STRING,
BUKRS TYPE STRING,
SUMST TYPE STRING,
THIDT TYPE STRING,
THPRD TYPE STRING,
BCBLN TYPE STRING,
SENID TYPE STRING,
RECID TYPE STRING,
ERDAT TYPE STRING,
ERNAM TYPE STRING,
ERTIM TYPE STRING,
APPLK TYPE STRING,
HVORG TYPE STRING,
TVORG TYPE STRING,
WAERS TYPE STRING,
BETRW TYPE STRING,
AEDAT TYPE STRING,
AENAM TYPE STRING,
AETIM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFKKTHI_SUM_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_DFKKTHI_SUM_STR-MANDT sy-vline 
WA_DFKKTHI_SUM_STR-AGGRF sy-vline 
WA_DFKKTHI_SUM_STR-BUKRS sy-vline 
WA_DFKKTHI_SUM_STR-SUMST sy-vline 
WA_DFKKTHI_SUM_STR-THIDT sy-vline 
WA_DFKKTHI_SUM_STR-THPRD sy-vline 
WA_DFKKTHI_SUM_STR-BCBLN sy-vline 
WA_DFKKTHI_SUM_STR-SENID sy-vline 
WA_DFKKTHI_SUM_STR-RECID sy-vline 
WA_DFKKTHI_SUM_STR-ERDAT sy-vline 
WA_DFKKTHI_SUM_STR-ERNAM sy-vline 
WA_DFKKTHI_SUM_STR-ERTIM sy-vline 
WA_DFKKTHI_SUM_STR-APPLK sy-vline 
WA_DFKKTHI_SUM_STR-HVORG sy-vline 
WA_DFKKTHI_SUM_STR-TVORG sy-vline 
WA_DFKKTHI_SUM_STR-WAERS sy-vline 
WA_DFKKTHI_SUM_STR-BETRW sy-vline 
WA_DFKKTHI_SUM_STR-AEDAT sy-vline 
WA_DFKKTHI_SUM_STR-AENAM sy-vline 
WA_DFKKTHI_SUM_STR-AETIM sy-vline      INTO ld_text SEPARATED BY SPACE.

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