ABAP Select data from SAP table DFKKDEFREV_TRIG into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKKDEFREV_TRIG
*  INTO TABLE @DATA(IT_DFKKDEFREV_TRIG2).
*--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_DFKKDEFREV_TRIG INDEX 1 INTO DATA(WA_DFKKDEFREV_TRIG2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKKDEFREV_TRIG>-MANDT = 1.
<DFKKDEFREV_TRIG>-ASSKY = 1.
<DFKKDEFREV_TRIG>-CTYPE = 1.
<DFKKDEFREV_TRIG>-PDATE = 1.
<DFKKDEFREV_TRIG>-XGUID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKKDEFREV_TRIG-BETRW, sy-vline,
  WA_DFKKDEFREV_TRIG-WAERS, sy-vline,
  WA_DFKKDEFREV_TRIG-MENGE, sy-vline,
  WA_DFKKDEFREV_TRIG-MEINS, sy-vline,
  WA_DFKKDEFREV_TRIG-INVDOCNO, sy-vline,
  WA_DFKKDEFREV_TRIG-BILLDOCNO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKKDEFREV_TRIG 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_DFKKDEFREV_TRIG 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_DFKKDEFREV_TRIG INTO WA_DFKKDEFREV_TRIG.


*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 CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DFKKDEFREV_TRIG-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKDEFREV_TRIG-MEINS.
WRITE:/ 'New Value:', ld_input.

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

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

*Conversion exit CUNIT, internal->external for field QTY_UNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_DFKKDEFREV_TRIG-QTY_UNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKDEFREV_TRIG-QTY_UNIT.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ABPSP, internal->external for field PS_PSP_PNR
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_DFKKDEFREV_TRIG-PS_PSP_PNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKDEFREV_TRIG-PS_PSP_PNR.
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_DFKKDEFREV_TRIG_STR, 
MANDT TYPE STRING,
ASSKY TYPE STRING,
CTYPE TYPE STRING,
PDATE TYPE STRING,
XGUID TYPE STRING,
BETRW TYPE STRING,
WAERS TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
INVDOCNO TYPE STRING,
BILLDOCNO TYPE STRING,
REF03 TYPE STRING,
ORIGN TYPE STRING,
EVDAT TYPE STRING,
OPBEL_WOFF TYPE STRING,
VKONT TYPE STRING,
QUANTITY TYPE STRING,
QTY_UNIT TYPE STRING,
HKONT TYPE STRING,
GSBER TYPE STRING,
SEGMENT TYPE STRING,
PRCTR TYPE STRING,
KOSTL TYPE STRING,
AUFNR TYPE STRING,
PS_PSP_PNR TYPE STRING,
XAUFNR TYPE STRING,
XPSP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFKKDEFREV_TRIG_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_DFKKDEFREV_TRIG_STR-MANDT sy-vline 
WA_DFKKDEFREV_TRIG_STR-ASSKY sy-vline 
WA_DFKKDEFREV_TRIG_STR-CTYPE sy-vline 
WA_DFKKDEFREV_TRIG_STR-PDATE sy-vline 
WA_DFKKDEFREV_TRIG_STR-XGUID sy-vline 
WA_DFKKDEFREV_TRIG_STR-BETRW sy-vline 
WA_DFKKDEFREV_TRIG_STR-WAERS sy-vline 
WA_DFKKDEFREV_TRIG_STR-MENGE sy-vline 
WA_DFKKDEFREV_TRIG_STR-MEINS sy-vline 
WA_DFKKDEFREV_TRIG_STR-INVDOCNO sy-vline 
WA_DFKKDEFREV_TRIG_STR-BILLDOCNO sy-vline 
WA_DFKKDEFREV_TRIG_STR-REF03 sy-vline 
WA_DFKKDEFREV_TRIG_STR-ORIGN sy-vline 
WA_DFKKDEFREV_TRIG_STR-EVDAT sy-vline 
WA_DFKKDEFREV_TRIG_STR-OPBEL_WOFF sy-vline 
WA_DFKKDEFREV_TRIG_STR-VKONT sy-vline 
WA_DFKKDEFREV_TRIG_STR-QUANTITY sy-vline 
WA_DFKKDEFREV_TRIG_STR-QTY_UNIT sy-vline 
WA_DFKKDEFREV_TRIG_STR-HKONT sy-vline 
WA_DFKKDEFREV_TRIG_STR-GSBER sy-vline 
WA_DFKKDEFREV_TRIG_STR-SEGMENT sy-vline 
WA_DFKKDEFREV_TRIG_STR-PRCTR sy-vline 
WA_DFKKDEFREV_TRIG_STR-KOSTL sy-vline 
WA_DFKKDEFREV_TRIG_STR-AUFNR sy-vline 
WA_DFKKDEFREV_TRIG_STR-PS_PSP_PNR sy-vline 
WA_DFKKDEFREV_TRIG_STR-XAUFNR sy-vline 
WA_DFKKDEFREV_TRIG_STR-XPSP sy-vline      INTO ld_text SEPARATED BY SPACE.

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