ABAP Select data from SAP table DFKKOPC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKKOPC
*  INTO TABLE @DATA(IT_DFKKOPC2).
*--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_DFKKOPC INDEX 1 INTO DATA(WA_DFKKOPC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKKOPC>-MANDT = 1.
<DFKKOPC>-OPBEL = 1.
<DFKKOPC>-PYGRP = 1.
<DFKKOPC>-CCINS = 1.
<DFKKOPC>-CCNUM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_DFKKOPC-CCFOL, sy-vline,
  WA_DFKKOPC-DATAB, sy-vline,
  WA_DFKKOPC-DATBI, sy-vline,
  WA_DFKKOPC-CCNAME, sy-vline,
  WA_DFKKOPC-AUNUM, sy-vline,
  WA_DFKKOPC-AUTRA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_DFKKOPC 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_DFKKOPC 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_DFKKOPC INTO WA_DFKKOPC.


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

*Conversion exit ALPHA, internal->external for field OPBEL_ORI
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_DFKKOPC-OPBEL_ORI
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_DFKKOPC-OPBEL_ORI.
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_DFKKOPC_STR, 
MANDT TYPE STRING,
OPBEL TYPE STRING,
PYGRP TYPE STRING,
CCINS TYPE STRING,
CCNUM TYPE STRING,
CCFOL TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,
CCNAME TYPE STRING,
AUNUM TYPE STRING,
AUTRA TYPE STRING,
AUDAT TYPE STRING,
AUTIM TYPE STRING,
AUART TYPE STRING,
AUTWR TYPE STRING,
CCWAE TYPE STRING,
MERCH TYPE STRING,
EXPDT TYPE STRING,
EXPTM TYPE STRING,
EXTMP TYPE STRING,
AUTMP TYPE STRING,
AUCID TYPE STRING,
AVREF TYPE STRING,
DP_AUTH_REL_ID TYPE STRING,
DP_FRAUD_RISK TYPE STRING,
CVVAL TYPE STRING,
CVVCT TYPE STRING,
CVVST TYPE STRING,
CGUID TYPE STRING,
ENCTP TYPE STRING,
XGUID TYPE STRING,
SRQID TYPE STRING,
OPBEL_ORI TYPE STRING,
PAYS_PROV TYPE STRING,
PAYS_TRAN TYPE STRING,
ORIG_PAYS_TRAN TYPE STRING,
ORIG_CREDIT TYPE STRING,
_DATAAGING TYPE STRING,
MASKED_ID TYPE STRING,
IBAN TYPE STRING,
SWIFT TYPE STRING,
KOINH_IP TYPE STRING,
TXTVW TYPE STRING,
MEREF_IP TYPE STRING,
BKREF_IP TYPE STRING,
PYREF_IP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_DFKKOPC_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_DFKKOPC_STR-MANDT sy-vline 
WA_DFKKOPC_STR-OPBEL sy-vline 
WA_DFKKOPC_STR-PYGRP sy-vline 
WA_DFKKOPC_STR-CCINS sy-vline 
WA_DFKKOPC_STR-CCNUM sy-vline 
WA_DFKKOPC_STR-CCFOL sy-vline 
WA_DFKKOPC_STR-DATAB sy-vline 
WA_DFKKOPC_STR-DATBI sy-vline 
WA_DFKKOPC_STR-CCNAME sy-vline 
WA_DFKKOPC_STR-AUNUM sy-vline 
WA_DFKKOPC_STR-AUTRA sy-vline 
WA_DFKKOPC_STR-AUDAT sy-vline 
WA_DFKKOPC_STR-AUTIM sy-vline 
WA_DFKKOPC_STR-AUART sy-vline 
WA_DFKKOPC_STR-AUTWR sy-vline 
WA_DFKKOPC_STR-CCWAE sy-vline 
WA_DFKKOPC_STR-MERCH sy-vline 
WA_DFKKOPC_STR-EXPDT sy-vline 
WA_DFKKOPC_STR-EXPTM sy-vline 
WA_DFKKOPC_STR-EXTMP sy-vline 
WA_DFKKOPC_STR-AUTMP sy-vline 
WA_DFKKOPC_STR-AUCID sy-vline 
WA_DFKKOPC_STR-AVREF sy-vline 
WA_DFKKOPC_STR-DP_AUTH_REL_ID sy-vline 
WA_DFKKOPC_STR-DP_FRAUD_RISK sy-vline 
WA_DFKKOPC_STR-CVVAL sy-vline 
WA_DFKKOPC_STR-CVVCT sy-vline 
WA_DFKKOPC_STR-CVVST sy-vline 
WA_DFKKOPC_STR-CGUID sy-vline 
WA_DFKKOPC_STR-ENCTP sy-vline 
WA_DFKKOPC_STR-XGUID sy-vline 
WA_DFKKOPC_STR-SRQID sy-vline 
WA_DFKKOPC_STR-OPBEL_ORI sy-vline 
WA_DFKKOPC_STR-PAYS_PROV sy-vline 
WA_DFKKOPC_STR-PAYS_TRAN sy-vline 
WA_DFKKOPC_STR-ORIG_PAYS_TRAN sy-vline 
WA_DFKKOPC_STR-ORIG_CREDIT sy-vline 
WA_DFKKOPC_STR-_DATAAGING sy-vline 
WA_DFKKOPC_STR-MASKED_ID sy-vline 
WA_DFKKOPC_STR-IBAN sy-vline 
WA_DFKKOPC_STR-SWIFT sy-vline 
WA_DFKKOPC_STR-KOINH_IP sy-vline 
WA_DFKKOPC_STR-TXTVW sy-vline 
WA_DFKKOPC_STR-MEREF_IP sy-vline 
WA_DFKKOPC_STR-BKREF_IP sy-vline 
WA_DFKKOPC_STR-PYREF_IP sy-vline      INTO ld_text SEPARATED BY SPACE.

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