ABAP Select data from SAP table FKK_PCARD_AUT_IN into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM FKK_PCARD_AUT_IN
*  INTO TABLE @DATA(IT_FKK_PCARD_AUT_IN2).
*--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_FKK_PCARD_AUT_IN INDEX 1 INTO DATA(WA_FKK_PCARD_AUT_IN2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<FKK_PCARD_AUT_IN>-CCINS = 1.
<FKK_PCARD_AUT_IN>-CCNUM = 1.
<FKK_PCARD_AUT_IN>-CCFOL = 1.
<FKK_PCARD_AUT_IN>-DATAB = 1.
<FKK_PCARD_AUT_IN>-DATBI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_FKK_PCARD_AUT_IN-CCNAME, sy-vline,
  WA_FKK_PCARD_AUT_IN-CVVAL, sy-vline,
  WA_FKK_PCARD_AUT_IN-CVVCT, sy-vline,
  WA_FKK_PCARD_AUT_IN-CVVST, sy-vline,
  WA_FKK_PCARD_AUT_IN-CGUID, sy-vline,
  WA_FKK_PCARD_AUT_IN-ENCTP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_FKK_PCARD_AUT_IN 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_FKK_PCARD_AUT_IN 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_FKK_PCARD_AUT_IN INTO WA_FKK_PCARD_AUT_IN.


*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_FKK_PCARD_AUT_IN_STR, 
CCINS TYPE STRING,
CCNUM TYPE STRING,
CCFOL TYPE STRING,
DATAB TYPE STRING,
DATBI TYPE STRING,
CCNAME TYPE STRING,
CVVAL TYPE STRING,
CVVCT TYPE STRING,
CVVST TYPE STRING,
CGUID TYPE STRING,
ENCTP TYPE STRING,
AUTWR TYPE STRING,
CCWAE TYPE STRING,
MERCH TYPE STRING,
FNAUT TYPE STRING,
RFCAUT TYPE STRING,
ORIGN TYPE STRING,END OF T_EKKO_STR.
DATA: WA_FKK_PCARD_AUT_IN_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_FKK_PCARD_AUT_IN_STR-CCINS sy-vline 
WA_FKK_PCARD_AUT_IN_STR-CCNUM sy-vline 
WA_FKK_PCARD_AUT_IN_STR-CCFOL sy-vline 
WA_FKK_PCARD_AUT_IN_STR-DATAB sy-vline 
WA_FKK_PCARD_AUT_IN_STR-DATBI sy-vline 
WA_FKK_PCARD_AUT_IN_STR-CCNAME sy-vline 
WA_FKK_PCARD_AUT_IN_STR-CVVAL sy-vline 
WA_FKK_PCARD_AUT_IN_STR-CVVCT sy-vline 
WA_FKK_PCARD_AUT_IN_STR-CVVST sy-vline 
WA_FKK_PCARD_AUT_IN_STR-CGUID sy-vline 
WA_FKK_PCARD_AUT_IN_STR-ENCTP sy-vline 
WA_FKK_PCARD_AUT_IN_STR-AUTWR sy-vline 
WA_FKK_PCARD_AUT_IN_STR-CCWAE sy-vline 
WA_FKK_PCARD_AUT_IN_STR-MERCH sy-vline 
WA_FKK_PCARD_AUT_IN_STR-FNAUT sy-vline 
WA_FKK_PCARD_AUT_IN_STR-RFCAUT sy-vline 
WA_FKK_PCARD_AUT_IN_STR-ORIGN sy-vline      INTO ld_text SEPARATED BY SPACE.

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