ABAP Select data from SAP table CKF_DIP_CUSTOMER_EXIT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CKF_DIP_CUSTOMER_EXIT 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_DIP_CUSTOMER_EXIT. 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_DIP_CUSTOMER_EXIT 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_DIP_CUSTOMER_EXIT TYPE STANDARD TABLE OF CKF_DIP_CUSTOMER_EXIT,
      WA_CKF_DIP_CUSTOMER_EXIT TYPE CKF_DIP_CUSTOMER_EXIT,
      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_DIP_CUSTOMER_EXIT> TYPE CKF_DIP_CUSTOMER_EXIT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CKF_DIP_CUSTOMER_EXIT
*  INTO TABLE @DATA(IT_CKF_DIP_CUSTOMER_EXIT2).
*--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_DIP_CUSTOMER_EXIT INDEX 1 INTO DATA(WA_CKF_DIP_CUSTOMER_EXIT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CKF_DIP_CUSTOMER_EXIT>-BZOBJ = 1.
<CKF_DIP_CUSTOMER_EXIT>-KALNR = 1.
<CKF_DIP_CUSTOMER_EXIT>-KALKA = 1.
<CKF_DIP_CUSTOMER_EXIT>-KADKY = 1.
<CKF_DIP_CUSTOMER_EXIT>-TVERS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CKF_DIP_CUSTOMER_EXIT-BWVAR, sy-vline,
  WA_CKF_DIP_CUSTOMER_EXIT-KKZMA, sy-vline,
  WA_CKF_DIP_CUSTOMER_EXIT-POSNR, sy-vline,
  WA_CKF_DIP_CUSTOMER_EXIT-KOKRS, sy-vline,
  WA_CKF_DIP_CUSTOMER_EXIT-OBJNR, sy-vline,
  WA_CKF_DIP_CUSTOMER_EXIT-KOSTL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CKF_DIP_CUSTOMER_EXIT 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_DIP_CUSTOMER_EXIT 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_DIP_CUSTOMER_EXIT INTO WA_CKF_DIP_CUSTOMER_EXIT.


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

*Conversion exit ALPHA, internal->external for field KSTAR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CKF_DIP_CUSTOMER_EXIT-KSTAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKF_DIP_CUSTOMER_EXIT-KSTAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_CKF_DIP_CUSTOMER_EXIT-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKF_DIP_CUSTOMER_EXIT-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRZNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CKF_DIP_CUSTOMER_EXIT-PRZNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKF_DIP_CUSTOMER_EXIT-PRZNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ASNUM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CKF_DIP_CUSTOMER_EXIT-ASNUM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKF_DIP_CUSTOMER_EXIT-ASNUM.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEEHT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_CKF_DIP_CUSTOMER_EXIT-MEEHT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKF_DIP_CUSTOMER_EXIT-MEEHT.
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_DIP_CUSTOMER_EXIT_STR, 
BZOBJ TYPE STRING,
KALNR TYPE STRING,
KALKA TYPE STRING,
KADKY TYPE STRING,
TVERS TYPE STRING,
BWVAR TYPE STRING,
KKZMA TYPE STRING,
POSNR TYPE STRING,
KOKRS TYPE STRING,
OBJNR TYPE STRING,
KOSTL TYPE STRING,
LSTAR TYPE STRING,
KSTAR TYPE STRING,
PAROB TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
ARBID TYPE STRING,
PRZNR TYPE STRING,
ASNUM TYPE STRING,
MEEHT TYPE STRING,
FWAER_KPF TYPE STRING,
FWAER TYPE STRING,
STEAS TYPE STRING,
MENGE TYPE STRING,
WRTFW_KPF TYPE STRING,
WERTN TYPE STRING,
WRTFW_POS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CKF_DIP_CUSTOMER_EXIT_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_DIP_CUSTOMER_EXIT_STR-BZOBJ sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-KALNR sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-KALKA sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-KADKY sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-TVERS sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-BWVAR sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-KKZMA sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-POSNR sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-KOKRS sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-OBJNR sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-KOSTL sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-LSTAR sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-KSTAR sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-PAROB sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-MATNR sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-WERKS sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-ARBID sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-PRZNR sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-ASNUM sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-MEEHT sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-FWAER_KPF sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-FWAER sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-STEAS sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-MENGE sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-WRTFW_KPF sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-WERTN sy-vline 
WA_CKF_DIP_CUSTOMER_EXIT_STR-WRTFW_POS sy-vline      INTO ld_text SEPARATED BY SPACE.

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