ABAP Select data from SAP table DFKKSAFTINV_H into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKKSAFTINV_H
*  INTO TABLE @DATA(IT_DFKKSAFTINV_H2).
*--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_DFKKSAFTINV_H INDEX 1 INTO DATA(WA_DFKKSAFTINV_H2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKKSAFTINV_H>-MANDT = 1.
<DFKKSAFTINV_H>-BUKRS = 1.
<DFKKSAFTINV_H>-GJAHR = 1.
<DFKKSAFTINV_H>-MONAT = 1.
<DFKKSAFTINV_H>-SOURCEDOCNUM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKKSAFTINV_H-DOCNUM, sy-vline,
  WA_DFKKSAFTINV_H-SOURCE, sy-vline,
  WA_DFKKSAFTINV_H-ITEM_SPLIT, sy-vline,
  WA_DFKKSAFTINV_H-BLDAT, sy-vline,
  WA_DFKKSAFTINV_H-BUDAT, sy-vline,
  WA_DFKKSAFTINV_H-INV_NO, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKKSAFTINV_H 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_DFKKSAFTINV_H 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_DFKKSAFTINV_H INTO WA_DFKKSAFTINV_H.


*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 GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_DFKKSAFTINV_H-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKSAFTINV_H-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field EXCHANGERATE
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_DFKKSAFTINV_H-EXCHANGERATE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKSAFTINV_H-EXCHANGERATE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VENDORID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFKKSAFTINV_H-VENDORID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKSAFTINV_H-VENDORID.
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_DFKKSAFTINV_H_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
GJAHR TYPE STRING,
MONAT TYPE STRING,
SOURCEDOCNUM TYPE STRING,
DOCNUM TYPE STRING,
SOURCE TYPE STRING,
ITEM_SPLIT TYPE STRING,
BLDAT TYPE STRING,
BUDAT TYPE STRING,
INV_NO TYPE STRING,
INV_STATUS TYPE STRING,
INV_STAT_DATE TYPE STRING,
INV_STAT_REAS TYPE STRING,
INV_STAT_SRC TYPE STRING,
INV_STAT_SRCBILL TYPE STRING,
HASH TYPE STRING,
HASH_CONTROL TYPE STRING,
PERIOD TYPE STRING,
INVOICE_DATE TYPE STRING,
INVOICE_TYPE TYPE STRING,
SELFBILLING_IND TYPE STRING,
SOURCEID TYPE STRING,
EACCODE TYPE STRING,
SYSENTRYDATE TYPE STRING,
TRANSACTION_ID TYPE STRING,
CUSTOMERID TYPE STRING,
ST_DELIV_ID TYPE STRING,
ST_DELIV_DATE TYPE STRING,
ST_ADD_BLDNO TYPE STRING,
ST_ADD_STRNAME TYPE STRING,
ST_ADD_DETAIL TYPE STRING,
ST_CITY TYPE STRING,
ST_POSTALCODE TYPE STRING,
ST_REGION TYPE STRING,
ST_COUNTRY TYPE STRING,
SF_DELIV_ID TYPE STRING,
SF_DELIV_DATE TYPE STRING,
SF_ADD_BLDNO TYPE STRING,
SF_ADD_STRNAME TYPE STRING,
SF_ADD_DETAIL TYPE STRING,
SF_CITY TYPE STRING,
SF_POSTALCODE TYPE STRING,
SF_REGION TYPE STRING,
SF_COUNTRY TYPE STRING,
DOC_TOTAL_TAX TYPE STRING,
DOC_TOTAL_NET TYPE STRING,
DOC_TOTAL_GROSS TYPE STRING,
S_STLMNT_DISC TYPE STRING,
S_STLMNT_AMT TYPE STRING,
S_STLMNT_DATE TYPE STRING,
S_PAYMNT_TERMS TYPE STRING,
S_PAYMNT_MECH TYPE STRING,
CURRENCY TYPE STRING,
CURR_DEBIT_AMT TYPE STRING,
CURR_CREDIT_AMT TYPE STRING,
CURR_AMOUNT TYPE STRING,
EXCHANGERATE TYPE STRING,
WAERS TYPE STRING,
SAFT_CURRENCY TYPE STRING,
CASHVAT_IND TYPE STRING,
THIRDPARBILL_IND TYPE STRING,
VENDORID TYPE STRING,
ATCUD TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFKKSAFTINV_H_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_DFKKSAFTINV_H_STR-MANDT sy-vline 
WA_DFKKSAFTINV_H_STR-BUKRS sy-vline 
WA_DFKKSAFTINV_H_STR-GJAHR sy-vline 
WA_DFKKSAFTINV_H_STR-MONAT sy-vline 
WA_DFKKSAFTINV_H_STR-SOURCEDOCNUM sy-vline 
WA_DFKKSAFTINV_H_STR-DOCNUM sy-vline 
WA_DFKKSAFTINV_H_STR-SOURCE sy-vline 
WA_DFKKSAFTINV_H_STR-ITEM_SPLIT sy-vline 
WA_DFKKSAFTINV_H_STR-BLDAT sy-vline 
WA_DFKKSAFTINV_H_STR-BUDAT sy-vline 
WA_DFKKSAFTINV_H_STR-INV_NO sy-vline 
WA_DFKKSAFTINV_H_STR-INV_STATUS sy-vline 
WA_DFKKSAFTINV_H_STR-INV_STAT_DATE sy-vline 
WA_DFKKSAFTINV_H_STR-INV_STAT_REAS sy-vline 
WA_DFKKSAFTINV_H_STR-INV_STAT_SRC sy-vline 
WA_DFKKSAFTINV_H_STR-INV_STAT_SRCBILL sy-vline 
WA_DFKKSAFTINV_H_STR-HASH sy-vline 
WA_DFKKSAFTINV_H_STR-HASH_CONTROL sy-vline 
WA_DFKKSAFTINV_H_STR-PERIOD sy-vline 
WA_DFKKSAFTINV_H_STR-INVOICE_DATE sy-vline 
WA_DFKKSAFTINV_H_STR-INVOICE_TYPE sy-vline 
WA_DFKKSAFTINV_H_STR-SELFBILLING_IND sy-vline 
WA_DFKKSAFTINV_H_STR-SOURCEID sy-vline 
WA_DFKKSAFTINV_H_STR-EACCODE sy-vline 
WA_DFKKSAFTINV_H_STR-SYSENTRYDATE sy-vline 
WA_DFKKSAFTINV_H_STR-TRANSACTION_ID sy-vline 
WA_DFKKSAFTINV_H_STR-CUSTOMERID sy-vline 
WA_DFKKSAFTINV_H_STR-ST_DELIV_ID sy-vline 
WA_DFKKSAFTINV_H_STR-ST_DELIV_DATE sy-vline 
WA_DFKKSAFTINV_H_STR-ST_ADD_BLDNO sy-vline 
WA_DFKKSAFTINV_H_STR-ST_ADD_STRNAME sy-vline 
WA_DFKKSAFTINV_H_STR-ST_ADD_DETAIL sy-vline 
WA_DFKKSAFTINV_H_STR-ST_CITY sy-vline 
WA_DFKKSAFTINV_H_STR-ST_POSTALCODE sy-vline 
WA_DFKKSAFTINV_H_STR-ST_REGION sy-vline 
WA_DFKKSAFTINV_H_STR-ST_COUNTRY sy-vline 
WA_DFKKSAFTINV_H_STR-SF_DELIV_ID sy-vline 
WA_DFKKSAFTINV_H_STR-SF_DELIV_DATE sy-vline 
WA_DFKKSAFTINV_H_STR-SF_ADD_BLDNO sy-vline 
WA_DFKKSAFTINV_H_STR-SF_ADD_STRNAME sy-vline 
WA_DFKKSAFTINV_H_STR-SF_ADD_DETAIL sy-vline 
WA_DFKKSAFTINV_H_STR-SF_CITY sy-vline 
WA_DFKKSAFTINV_H_STR-SF_POSTALCODE sy-vline 
WA_DFKKSAFTINV_H_STR-SF_REGION sy-vline 
WA_DFKKSAFTINV_H_STR-SF_COUNTRY sy-vline 
WA_DFKKSAFTINV_H_STR-DOC_TOTAL_TAX sy-vline 
WA_DFKKSAFTINV_H_STR-DOC_TOTAL_NET sy-vline 
WA_DFKKSAFTINV_H_STR-DOC_TOTAL_GROSS sy-vline 
WA_DFKKSAFTINV_H_STR-S_STLMNT_DISC sy-vline 
WA_DFKKSAFTINV_H_STR-S_STLMNT_AMT sy-vline 
WA_DFKKSAFTINV_H_STR-S_STLMNT_DATE sy-vline 
WA_DFKKSAFTINV_H_STR-S_PAYMNT_TERMS sy-vline 
WA_DFKKSAFTINV_H_STR-S_PAYMNT_MECH sy-vline 
WA_DFKKSAFTINV_H_STR-CURRENCY sy-vline 
WA_DFKKSAFTINV_H_STR-CURR_DEBIT_AMT sy-vline 
WA_DFKKSAFTINV_H_STR-CURR_CREDIT_AMT sy-vline 
WA_DFKKSAFTINV_H_STR-CURR_AMOUNT sy-vline 
WA_DFKKSAFTINV_H_STR-EXCHANGERATE sy-vline 
WA_DFKKSAFTINV_H_STR-WAERS sy-vline 
WA_DFKKSAFTINV_H_STR-SAFT_CURRENCY sy-vline 
WA_DFKKSAFTINV_H_STR-CASHVAT_IND sy-vline 
WA_DFKKSAFTINV_H_STR-THIRDPARBILL_IND sy-vline 
WA_DFKKSAFTINV_H_STR-VENDORID sy-vline 
WA_DFKKSAFTINV_H_STR-ATCUD sy-vline      INTO ld_text SEPARATED BY SPACE.

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