ABAP Select data from SAP table CKTCF_CC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CKTCF_CC
*  INTO TABLE @DATA(IT_CKTCF_CC2).
*--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_CKTCF_CC INDEX 1 INTO DATA(WA_CKTCF_CC2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CKTCF_CC>-PFNAME = 1.
<CKTCF_CC>-PPENAME = 1.
<CKTCF_CC>-WERKS = 1.
<CKTCF_CC>-PPEUSE = 1.
<CKTCF_CC>-KLVAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CKTCF_CC-TVERS, sy-vline,
  WA_CKTCF_CC-LOSGR, sy-vline,
  WA_CKTCF_CC-KADAT, sy-vline,
  WA_CKTCF_CC-BWDAT, sy-vline,
  WA_CKTCF_CC-UEBID, sy-vline,
  WA_CKTCF_CC-MEINS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CKTCF_CC 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_CKTCF_CC 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_CKTCF_CC INTO WA_CKTCF_CC.


*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 CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CKTCF_CC-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKTCF_CC-MEINS.
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_CKTCF_CC_STR, 
PFNAME TYPE STRING,
PPENAME TYPE STRING,
WERKS TYPE STRING,
PPEUSE TYPE STRING,
KLVAR TYPE STRING,
TVERS TYPE STRING,
LOSGR TYPE STRING,
KADAT TYPE STRING,
BWDAT TYPE STRING,
UEBID TYPE STRING,
MEINS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CKTCF_CC_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_CKTCF_CC_STR-PFNAME sy-vline 
WA_CKTCF_CC_STR-PPENAME sy-vline 
WA_CKTCF_CC_STR-WERKS sy-vline 
WA_CKTCF_CC_STR-PPEUSE sy-vline 
WA_CKTCF_CC_STR-KLVAR sy-vline 
WA_CKTCF_CC_STR-TVERS sy-vline 
WA_CKTCF_CC_STR-LOSGR sy-vline 
WA_CKTCF_CC_STR-KADAT sy-vline 
WA_CKTCF_CC_STR-BWDAT sy-vline 
WA_CKTCF_CC_STR-UEBID sy-vline 
WA_CKTCF_CC_STR-MEINS sy-vline      INTO ld_text SEPARATED BY SPACE.

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