ABAP Select data from SAP table DFKK_PCARD into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM DFKK_PCARD
*  INTO TABLE @DATA(IT_DFKK_PCARD2).
*--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_DFKK_PCARD INDEX 1 INTO DATA(WA_DFKK_PCARD2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<DFKK_PCARD>-MANDT = 1.
<DFKK_PCARD>-XGUID = 1.
<DFKK_PCARD>-CCINS = 1.
<DFKK_PCARD>-CCNUM = 1.
<DFKK_PCARD>-CCFOL = 1.

ENDLOOP.

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

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


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_DFKK_PCARD_STR, 
MANDT TYPE STRING,
XGUID 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,
CGUID TYPE STRING,
ENCTP TYPE STRING,
TIMESTAMP TYPE STRING,
ORIGN TYPE STRING,
PAYS_PROV TYPE STRING,
PAYS_TRAN TYPE STRING,
ORIG_PAYS_TRAN TYPE STRING,
ORIG_CREDIT 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_DFKK_PCARD_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_DFKK_PCARD_STR-MANDT sy-vline 
WA_DFKK_PCARD_STR-XGUID sy-vline 
WA_DFKK_PCARD_STR-CCINS sy-vline 
WA_DFKK_PCARD_STR-CCNUM sy-vline 
WA_DFKK_PCARD_STR-CCFOL sy-vline 
WA_DFKK_PCARD_STR-DATAB sy-vline 
WA_DFKK_PCARD_STR-DATBI sy-vline 
WA_DFKK_PCARD_STR-CCNAME sy-vline 
WA_DFKK_PCARD_STR-AUNUM sy-vline 
WA_DFKK_PCARD_STR-AUTRA sy-vline 
WA_DFKK_PCARD_STR-AUDAT sy-vline 
WA_DFKK_PCARD_STR-AUTIM sy-vline 
WA_DFKK_PCARD_STR-AUART sy-vline 
WA_DFKK_PCARD_STR-AUTWR sy-vline 
WA_DFKK_PCARD_STR-CCWAE sy-vline 
WA_DFKK_PCARD_STR-MERCH sy-vline 
WA_DFKK_PCARD_STR-EXPDT sy-vline 
WA_DFKK_PCARD_STR-EXPTM sy-vline 
WA_DFKK_PCARD_STR-EXTMP sy-vline 
WA_DFKK_PCARD_STR-AUTMP sy-vline 
WA_DFKK_PCARD_STR-AUCID sy-vline 
WA_DFKK_PCARD_STR-AVREF sy-vline 
WA_DFKK_PCARD_STR-DP_AUTH_REL_ID sy-vline 
WA_DFKK_PCARD_STR-DP_FRAUD_RISK sy-vline 
WA_DFKK_PCARD_STR-CGUID sy-vline 
WA_DFKK_PCARD_STR-ENCTP sy-vline 
WA_DFKK_PCARD_STR-TIMESTAMP sy-vline 
WA_DFKK_PCARD_STR-ORIGN sy-vline 
WA_DFKK_PCARD_STR-PAYS_PROV sy-vline 
WA_DFKK_PCARD_STR-PAYS_TRAN sy-vline 
WA_DFKK_PCARD_STR-ORIG_PAYS_TRAN sy-vline 
WA_DFKK_PCARD_STR-ORIG_CREDIT sy-vline 
WA_DFKK_PCARD_STR-MASKED_ID sy-vline 
WA_DFKK_PCARD_STR-IBAN sy-vline 
WA_DFKK_PCARD_STR-SWIFT sy-vline 
WA_DFKK_PCARD_STR-KOINH_IP sy-vline 
WA_DFKK_PCARD_STR-TXTVW sy-vline 
WA_DFKK_PCARD_STR-MEREF_IP sy-vline 
WA_DFKK_PCARD_STR-BKREF_IP sy-vline 
WA_DFKK_PCARD_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.