ABAP Select data from SAP table MC43RK0CAS into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP MC43RK0CAS 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 MC43RK0CAS. 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 MC43RK0CAS 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_MC43RK0CAS TYPE STANDARD TABLE OF MC43RK0CAS,
      WA_MC43RK0CAS TYPE MC43RK0CAS,
      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: <MC43RK0CAS> TYPE MC43RK0CAS.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_MC43RK0CAS.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM MC43RK0CAS
  INTO TABLE IT_MC43RK0CAS.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM MC43RK0CAS
*  INTO TABLE @DATA(IT_MC43RK0CAS2).
*--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_MC43RK0CAS INDEX 1 INTO DATA(WA_MC43RK0CAS2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_MC43RK0CAS ASSIGNING <MC43RK0CAS>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<MC43RK0CAS>-ROCANCEL = 1.
<MC43RK0CAS>-ASCAR = 1.
<MC43RK0CAS>-BNKBVOL = 1.
<MC43RK0CAS>-CMPCODE = 1.
<MC43RK0CAS>-CONDTYI = 1.

ENDLOOP.

LOOP AT IT_MC43RK0CAS INTO WA_MC43RK0CAS.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_MC43RK0CAS-CONDTYS, sy-vline,
  WA_MC43RK0CAS-CONTTAX, sy-vline,
  WA_MC43RK0CAS-CSHRNM, sy-vline,
  WA_MC43RK0CAS-CSHRNO, sy-vline,
  WA_MC43RK0CAS-EXCHANG, sy-vline,
  WA_MC43RK0CAS-LOCCUR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_MC43RK0CAS 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_MC43RK0CAS 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_MC43RK0CAS INTO WA_MC43RK0CAS.


*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 ASCAR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_MC43RK0CAS-ASCAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC43RK0CAS-ASCAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field EXCHANG
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_MC43RK0CAS-EXCHANG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_MC43RK0CAS-EXCHANG.
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_MC43RK0CAS_STR, 
ROCANCEL TYPE STRING,
ASCAR TYPE STRING,
BNKBVOL TYPE STRING,
CMPCODE TYPE STRING,
CONDTYI TYPE STRING,
CONDTYS TYPE STRING,
CONTTAX TYPE STRING,
CSHRNM TYPE STRING,
CSHRNO TYPE STRING,
EXCHANG TYPE STRING,
LOCCUR TYPE STRING,
LOGTIM TYPE STRING,
MOPAAM TYPE STRING,
MOPTAM TYPE STRING,
NOCHOL TYPE STRING,
NOCON TYPE STRING,
NOCSHREM TYPE STRING,
NOCTRA TYPE STRING,
NOFLOGAT TYPE STRING,
NOICANC TYPE STRING,
NOLCANC TYPE STRING,
NOMGRSAL TYPE STRING,
NOPOS TYPE STRING,
NOREC TYPE STRING,
NOREP TYPE STRING,
NOSCANA TYPE STRING,
NOTDRWOP TYPE STRING,
NOTERM TYPE STRING,
POSCTR TYPE STRING,
POSCUR TYPE STRING,
POSDAT TYPE STRING,
POSNO TYPE STRING,
POSPAYM TYPE STRING,
POSTIM TYPE STRING,
REGTIM TYPE STRING,
SALCPR TYPE STRING,
SALES TYPE STRING,
SALGRP TYPE STRING,
SALPRR TYPE STRING,
SALTAX TYPE STRING,
STORE TYPE STRING,
TATYPE TYPE STRING,
TAXCODE TYPE STRING,
TDIFFM TYPE STRING,
TDIFFP TYPE STRING,
VALCHOL TYPE STRING,
VALCSHREM TYPE STRING,
VALCTRA TYPE STRING,
VALICANC TYPE STRING,
VALLCANC TYPE STRING,
VALMGRSAL TYPE STRING,
VALSCANA TYPE STRING,
VALTERM TYPE STRING,
WEEKDAY TYPE STRING,END OF T_EKKO_STR.
DATA: WA_MC43RK0CAS_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_MC43RK0CAS_STR-ROCANCEL sy-vline 
WA_MC43RK0CAS_STR-ASCAR sy-vline 
WA_MC43RK0CAS_STR-BNKBVOL sy-vline 
WA_MC43RK0CAS_STR-CMPCODE sy-vline 
WA_MC43RK0CAS_STR-CONDTYI sy-vline 
WA_MC43RK0CAS_STR-CONDTYS sy-vline 
WA_MC43RK0CAS_STR-CONTTAX sy-vline 
WA_MC43RK0CAS_STR-CSHRNM sy-vline 
WA_MC43RK0CAS_STR-CSHRNO sy-vline 
WA_MC43RK0CAS_STR-EXCHANG sy-vline 
WA_MC43RK0CAS_STR-LOCCUR sy-vline 
WA_MC43RK0CAS_STR-LOGTIM sy-vline 
WA_MC43RK0CAS_STR-MOPAAM sy-vline 
WA_MC43RK0CAS_STR-MOPTAM sy-vline 
WA_MC43RK0CAS_STR-NOCHOL sy-vline 
WA_MC43RK0CAS_STR-NOCON sy-vline 
WA_MC43RK0CAS_STR-NOCSHREM sy-vline 
WA_MC43RK0CAS_STR-NOCTRA sy-vline 
WA_MC43RK0CAS_STR-NOFLOGAT sy-vline 
WA_MC43RK0CAS_STR-NOICANC sy-vline 
WA_MC43RK0CAS_STR-NOLCANC sy-vline 
WA_MC43RK0CAS_STR-NOMGRSAL sy-vline 
WA_MC43RK0CAS_STR-NOPOS sy-vline 
WA_MC43RK0CAS_STR-NOREC sy-vline 
WA_MC43RK0CAS_STR-NOREP sy-vline 
WA_MC43RK0CAS_STR-NOSCANA sy-vline 
WA_MC43RK0CAS_STR-NOTDRWOP sy-vline 
WA_MC43RK0CAS_STR-NOTERM sy-vline 
WA_MC43RK0CAS_STR-POSCTR sy-vline 
WA_MC43RK0CAS_STR-POSCUR sy-vline 
WA_MC43RK0CAS_STR-POSDAT sy-vline 
WA_MC43RK0CAS_STR-POSNO sy-vline 
WA_MC43RK0CAS_STR-POSPAYM sy-vline 
WA_MC43RK0CAS_STR-POSTIM sy-vline 
WA_MC43RK0CAS_STR-REGTIM sy-vline 
WA_MC43RK0CAS_STR-SALCPR sy-vline 
WA_MC43RK0CAS_STR-SALES sy-vline 
WA_MC43RK0CAS_STR-SALGRP sy-vline 
WA_MC43RK0CAS_STR-SALPRR sy-vline 
WA_MC43RK0CAS_STR-SALTAX sy-vline 
WA_MC43RK0CAS_STR-STORE sy-vline 
WA_MC43RK0CAS_STR-TATYPE sy-vline 
WA_MC43RK0CAS_STR-TAXCODE sy-vline 
WA_MC43RK0CAS_STR-TDIFFM sy-vline 
WA_MC43RK0CAS_STR-TDIFFP sy-vline 
WA_MC43RK0CAS_STR-VALCHOL sy-vline 
WA_MC43RK0CAS_STR-VALCSHREM sy-vline 
WA_MC43RK0CAS_STR-VALCTRA sy-vline 
WA_MC43RK0CAS_STR-VALICANC sy-vline 
WA_MC43RK0CAS_STR-VALLCANC sy-vline 
WA_MC43RK0CAS_STR-VALMGRSAL sy-vline 
WA_MC43RK0CAS_STR-VALSCANA sy-vline 
WA_MC43RK0CAS_STR-VALTERM sy-vline 
WA_MC43RK0CAS_STR-WEEKDAY sy-vline      INTO ld_text SEPARATED BY SPACE.

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