ABAP Select data from SAP table DFKKINVD_H_SH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKKINVD_H_SH
*  INTO TABLE @DATA(IT_DFKKINVD_H_SH2).
*--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_DFKKINVD_H_SH INDEX 1 INTO DATA(WA_DFKKINVD_H_SH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKKINVD_H_SH>-MANDT = 1.
<DFKKINVD_H_SH>-INVDOCNO = 1.
<DFKKINVD_H_SH>-APPLK = 1.
<DFKKINVD_H_SH>-INV_PROCESS = 1.
<DFKKINVD_H_SH>-INV_TYPE = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKKINVD_H_SH-TECHDOCTYPE, sy-vline,
  WA_DFKKINVD_H_SH-TARGPROCESS, sy-vline,
  WA_DFKKINVD_H_SH-GPART, sy-vline,
  WA_DFKKINVD_H_SH-VKONT, sy-vline,
  WA_DFKKINVD_H_SH-ABWVK, sy-vline,
  WA_DFKKINVD_H_SH-ABWBL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKKINVD_H_SH 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_DFKKINVD_H_SH 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_DFKKINVD_H_SH INTO WA_DFKKINVD_H_SH.


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

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

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

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

*Conversion exit EXBEL, internal->external for field EXBEL
CALL FUNCTION 'CONVERSION_EXIT_EXBEL_OUTPUT'
  EXPORTING
    input =                      WA_DFKKINVD_H_SH-EXBEL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKINVD_H_SH-EXBEL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VTREF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFKKINVD_H_SH-VTREF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKINVD_H_SH-VTREF.
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_DFKKINVD_H_SH_STR, 
MANDT TYPE STRING,
INVDOCNO TYPE STRING,
APPLK TYPE STRING,
INV_PROCESS TYPE STRING,
INV_TYPE TYPE STRING,
TECHDOCTYPE TYPE STRING,
TARGPROCESS TYPE STRING,
GPART TYPE STRING,
VKONT TYPE STRING,
ABWVK TYPE STRING,
ABWBL TYPE STRING,
CRDATE TYPE STRING,
RECNUM TYPE STRING,
INVRUNNO TYPE STRING,
FIKEY TYPE STRING,
BUDAT TYPE STRING,
BLDAT TYPE STRING,
FAEDN TYPE STRING,
FAEDS TYPE STRING,
SKTPZ TYPE STRING,
TOTAL_CURR TYPE STRING,
TOTAL_AMT TYPE STRING,
INVOICED TYPE STRING,
SIMULATED TYPE STRING,
PRELIMINARY TYPE STRING,
PRLINV_STATUS TYPE STRING,
REVREASON TYPE STRING,
REVERSALDOC TYPE STRING,
REVERSEDDOC TYPE STRING,
CORRCAT TYPE STRING,
PRINTDATE TYPE STRING,
PRINTLOCK TYPE STRING,
DOCTYPE TYPE STRING,
EXBEL TYPE STRING,
BUKRS TYPE STRING,
BUPLA TYPE STRING,
VTREF TYPE STRING,
INVPERIOD TYPE STRING,
INVPERIOD_FROM TYPE STRING,
BOLLOTAX TYPE STRING,
EXTRACT_ID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFKKINVD_H_SH_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_DFKKINVD_H_SH_STR-MANDT sy-vline 
WA_DFKKINVD_H_SH_STR-INVDOCNO sy-vline 
WA_DFKKINVD_H_SH_STR-APPLK sy-vline 
WA_DFKKINVD_H_SH_STR-INV_PROCESS sy-vline 
WA_DFKKINVD_H_SH_STR-INV_TYPE sy-vline 
WA_DFKKINVD_H_SH_STR-TECHDOCTYPE sy-vline 
WA_DFKKINVD_H_SH_STR-TARGPROCESS sy-vline 
WA_DFKKINVD_H_SH_STR-GPART sy-vline 
WA_DFKKINVD_H_SH_STR-VKONT sy-vline 
WA_DFKKINVD_H_SH_STR-ABWVK sy-vline 
WA_DFKKINVD_H_SH_STR-ABWBL sy-vline 
WA_DFKKINVD_H_SH_STR-CRDATE sy-vline 
WA_DFKKINVD_H_SH_STR-RECNUM sy-vline 
WA_DFKKINVD_H_SH_STR-INVRUNNO sy-vline 
WA_DFKKINVD_H_SH_STR-FIKEY sy-vline 
WA_DFKKINVD_H_SH_STR-BUDAT sy-vline 
WA_DFKKINVD_H_SH_STR-BLDAT sy-vline 
WA_DFKKINVD_H_SH_STR-FAEDN sy-vline 
WA_DFKKINVD_H_SH_STR-FAEDS sy-vline 
WA_DFKKINVD_H_SH_STR-SKTPZ sy-vline 
WA_DFKKINVD_H_SH_STR-TOTAL_CURR sy-vline 
WA_DFKKINVD_H_SH_STR-TOTAL_AMT sy-vline 
WA_DFKKINVD_H_SH_STR-INVOICED sy-vline 
WA_DFKKINVD_H_SH_STR-SIMULATED sy-vline 
WA_DFKKINVD_H_SH_STR-PRELIMINARY sy-vline 
WA_DFKKINVD_H_SH_STR-PRLINV_STATUS sy-vline 
WA_DFKKINVD_H_SH_STR-REVREASON sy-vline 
WA_DFKKINVD_H_SH_STR-REVERSALDOC sy-vline 
WA_DFKKINVD_H_SH_STR-REVERSEDDOC sy-vline 
WA_DFKKINVD_H_SH_STR-CORRCAT sy-vline 
WA_DFKKINVD_H_SH_STR-PRINTDATE sy-vline 
WA_DFKKINVD_H_SH_STR-PRINTLOCK sy-vline 
WA_DFKKINVD_H_SH_STR-DOCTYPE sy-vline 
WA_DFKKINVD_H_SH_STR-EXBEL sy-vline 
WA_DFKKINVD_H_SH_STR-BUKRS sy-vline 
WA_DFKKINVD_H_SH_STR-BUPLA sy-vline 
WA_DFKKINVD_H_SH_STR-VTREF sy-vline 
WA_DFKKINVD_H_SH_STR-INVPERIOD sy-vline 
WA_DFKKINVD_H_SH_STR-INVPERIOD_FROM sy-vline 
WA_DFKKINVD_H_SH_STR-BOLLOTAX sy-vline 
WA_DFKKINVD_H_SH_STR-EXTRACT_ID sy-vline      INTO ld_text SEPARATED BY SPACE.

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