ABAP Select data from SAP table CSKSF into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSKSF
*  INTO TABLE @DATA(IT_CSKSF2).
*--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_CSKSF INDEX 1 INTO DATA(WA_CSKSF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSKSF>-KOKRS = 1.
<CSKSF>-KOSTL = 1.
<CSKSF>-BUPER = 1.
<CSKSF>-BKZKP = 1.
<CSKSF>-BKZKS = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSKSF-BKZER, sy-vline,
  WA_CSKSF-BKZOB, sy-vline,
  WA_CSKSF-PKZKP, sy-vline,
  WA_CSKSF-PKZKS, sy-vline,
  WA_CSKSF-PKZER, sy-vline,
  WA_CSKSF-MGEFL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSKSF 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_CSKSF 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_CSKSF INTO WA_CSKSF.


*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_CSKSF-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSKSF-KOSTL.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field LOGSYSTEM
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CSKSF-LOGSYSTEM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSKSF-LOGSYSTEM.
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_CSKSF_STR, 
KOKRS TYPE STRING,
KOSTL TYPE STRING,
BUPER TYPE STRING,
BKZKP TYPE STRING,
BKZKS TYPE STRING,
BKZER TYPE STRING,
BKZOB TYPE STRING,
PKZKP TYPE STRING,
PKZKS TYPE STRING,
PKZER TYPE STRING,
MGEFL TYPE STRING,
ABTEI TYPE STRING,
VERAK TYPE STRING,
VERAK_USER TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
PRCTR TYPE STRING,
WERKS TYPE STRING,
WAERS TYPE STRING,
OBJNR TYPE STRING,
KOMPL TYPE STRING,
KHINR TYPE STRING,
KOSAR TYPE STRING,
TXJCD TYPE STRING,
VNAME TYPE STRING,
RECID TYPE STRING,
ETYPE TYPE STRING,
LOGSYSTEM TYPE STRING,
KALSM TYPE STRING,
CPI_TEMPL TYPE STRING,
CPD_TEMPL TYPE STRING,
FUNC_AREA TYPE STRING,
SCI_TEMPL TYPE STRING,
SCD_TEMPL TYPE STRING,
SKI_TEMPL TYPE STRING,
SKD_TEMPL TYPE STRING,
KTEXT TYPE STRING,
LTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSKSF_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_CSKSF_STR-KOKRS sy-vline 
WA_CSKSF_STR-KOSTL sy-vline 
WA_CSKSF_STR-BUPER sy-vline 
WA_CSKSF_STR-BKZKP sy-vline 
WA_CSKSF_STR-BKZKS sy-vline 
WA_CSKSF_STR-BKZER sy-vline 
WA_CSKSF_STR-BKZOB sy-vline 
WA_CSKSF_STR-PKZKP sy-vline 
WA_CSKSF_STR-PKZKS sy-vline 
WA_CSKSF_STR-PKZER sy-vline 
WA_CSKSF_STR-MGEFL sy-vline 
WA_CSKSF_STR-ABTEI sy-vline 
WA_CSKSF_STR-VERAK sy-vline 
WA_CSKSF_STR-VERAK_USER sy-vline 
WA_CSKSF_STR-BUKRS sy-vline 
WA_CSKSF_STR-GSBER sy-vline 
WA_CSKSF_STR-PRCTR sy-vline 
WA_CSKSF_STR-WERKS sy-vline 
WA_CSKSF_STR-WAERS sy-vline 
WA_CSKSF_STR-OBJNR sy-vline 
WA_CSKSF_STR-KOMPL sy-vline 
WA_CSKSF_STR-KHINR sy-vline 
WA_CSKSF_STR-KOSAR sy-vline 
WA_CSKSF_STR-TXJCD sy-vline 
WA_CSKSF_STR-VNAME sy-vline 
WA_CSKSF_STR-RECID sy-vline 
WA_CSKSF_STR-ETYPE sy-vline 
WA_CSKSF_STR-LOGSYSTEM sy-vline 
WA_CSKSF_STR-KALSM sy-vline 
WA_CSKSF_STR-CPI_TEMPL sy-vline 
WA_CSKSF_STR-CPD_TEMPL sy-vline 
WA_CSKSF_STR-FUNC_AREA sy-vline 
WA_CSKSF_STR-SCI_TEMPL sy-vline 
WA_CSKSF_STR-SCD_TEMPL sy-vline 
WA_CSKSF_STR-SKI_TEMPL sy-vline 
WA_CSKSF_STR-SKD_TEMPL sy-vline 
WA_CSKSF_STR-KTEXT sy-vline 
WA_CSKSF_STR-LTEXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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