ABAP Select data from SAP table CKF_CKTC_CBEW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CKF_CKTC_CBEW
*  INTO TABLE @DATA(IT_CKF_CKTC_CBEW2).
*--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_CKF_CKTC_CBEW INDEX 1 INTO DATA(WA_CKF_CKTC_CBEW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CKF_CKTC_CBEW>-MANDT = 1.
<CKF_CKTC_CBEW>-CMDGUID = 1.
<CKF_CKTC_CBEW>-CMDHCNT = 1.
<CKF_CKTC_CBEW>-CMDNAME = 1.
<CKF_CKTC_CBEW>-KSTAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CKF_CKTC_CBEW-HRKFT, sy-vline,
  WA_CKF_CKTC_CBEW-TWAER, sy-vline,
  WA_CKF_CKTC_CBEW-PMEHT, sy-vline,
  WA_CKF_CKTC_CBEW-PREIS, sy-vline,
  WA_CKF_CKTC_CBEW-PEINH, sy-vline,
  WA_CKF_CKTC_CBEW-CHANCE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CKF_CKTC_CBEW 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_CKF_CKTC_CBEW 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_CKF_CKTC_CBEW INTO WA_CKF_CKTC_CBEW.


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

*Conversion exit CUNIT, internal->external for field PMEHT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CKF_CKTC_CBEW-PMEHT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKF_CKTC_CBEW-PMEHT.
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_CKF_CKTC_CBEW_STR, 
MANDT TYPE STRING,
CMDGUID TYPE STRING,
CMDHCNT TYPE STRING,
CMDNAME TYPE STRING,
KSTAR TYPE STRING,
HRKFT TYPE STRING,
TWAER TYPE STRING,
PMEHT TYPE STRING,
PREIS TYPE STRING,
PEINH TYPE STRING,
CHANCE TYPE STRING,
CEINH TYPE STRING,
CPROZ TYPE STRING,
RISIKO TYPE STRING,
REINH TYPE STRING,
RPROZ TYPE STRING,
TARGET TYPE STRING,
TEINH TYPE STRING,
STRING TYPE STRING,
LTFLG TYPE STRING,
ABDAT TYPE STRING,
AENNM TYPE STRING,
AENDT TYPE STRING,
AENZT TYPE STRING,
UPDATE_FLAG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CKF_CKTC_CBEW_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_CKF_CKTC_CBEW_STR-MANDT sy-vline 
WA_CKF_CKTC_CBEW_STR-CMDGUID sy-vline 
WA_CKF_CKTC_CBEW_STR-CMDHCNT sy-vline 
WA_CKF_CKTC_CBEW_STR-CMDNAME sy-vline 
WA_CKF_CKTC_CBEW_STR-KSTAR sy-vline 
WA_CKF_CKTC_CBEW_STR-HRKFT sy-vline 
WA_CKF_CKTC_CBEW_STR-TWAER sy-vline 
WA_CKF_CKTC_CBEW_STR-PMEHT sy-vline 
WA_CKF_CKTC_CBEW_STR-PREIS sy-vline 
WA_CKF_CKTC_CBEW_STR-PEINH sy-vline 
WA_CKF_CKTC_CBEW_STR-CHANCE sy-vline 
WA_CKF_CKTC_CBEW_STR-CEINH sy-vline 
WA_CKF_CKTC_CBEW_STR-CPROZ sy-vline 
WA_CKF_CKTC_CBEW_STR-RISIKO sy-vline 
WA_CKF_CKTC_CBEW_STR-REINH sy-vline 
WA_CKF_CKTC_CBEW_STR-RPROZ sy-vline 
WA_CKF_CKTC_CBEW_STR-TARGET sy-vline 
WA_CKF_CKTC_CBEW_STR-TEINH sy-vline 
WA_CKF_CKTC_CBEW_STR-STRING sy-vline 
WA_CKF_CKTC_CBEW_STR-LTFLG sy-vline 
WA_CKF_CKTC_CBEW_STR-ABDAT sy-vline 
WA_CKF_CKTC_CBEW_STR-AENNM sy-vline 
WA_CKF_CKTC_CBEW_STR-AENDT sy-vline 
WA_CKF_CKTC_CBEW_STR-AENZT sy-vline 
WA_CKF_CKTC_CBEW_STR-UPDATE_FLAG sy-vline      INTO ld_text SEPARATED BY SPACE.

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