ABAP Select data from SAP table CKILIST01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CKILIST01 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 CKILIST01. 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 CKILIST01 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_CKILIST01 TYPE STANDARD TABLE OF CKILIST01,
      WA_CKILIST01 TYPE CKILIST01,
      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: <CKILIST01> TYPE CKILIST01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CKILIST01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CKILIST01
  INTO TABLE IT_CKILIST01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CKILIST01
*  INTO TABLE @DATA(IT_CKILIST012).
*--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_CKILIST01 INDEX 1 INTO DATA(WA_CKILIST012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CKILIST01 ASSIGNING <CKILIST01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CKILIST01>-BWTAR = 1.
<CKILIST01>-CURTP = 1.
<CKILIST01>-WAERS = 1.
<CKILIST01>-PEINH = 1.
<CKILIST01>-VPRSV = 1.

ENDLOOP.

LOOP AT IT_CKILIST01 INTO WA_CKILIST01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CKILIST01-VERPR, sy-vline,
  WA_CKILIST01-STPRS, sy-vline,
  WA_CKILIST01-KALKZ, sy-vline,
  WA_CKILIST01-PPRDZ, sy-vline,
  WA_CKILIST01-PDATZ, sy-vline,
  WA_CKILIST01-BWVA1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CKILIST01 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_CKILIST01 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_CKILIST01 INTO WA_CKILIST01.


*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 GJAHR, internal->external for field PDATZ
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CKILIST01-PDATZ
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKILIST01-PDATZ.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field PDATL
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CKILIST01-PDATL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKILIST01-PDATL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field PDATV
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CKILIST01-PDATV
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKILIST01-PDATV.
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_CKILIST01_STR, 
BWTAR TYPE STRING,
CURTP TYPE STRING,
WAERS TYPE STRING,
PEINH TYPE STRING,
VPRSV TYPE STRING,
VERPR TYPE STRING,
STPRS TYPE STRING,
KALKZ TYPE STRING,
PPRDZ TYPE STRING,
PDATZ TYPE STRING,
BWVA1 TYPE STRING,
VERS1 TYPE STRING,
ZPLPR TYPE STRING,
FPLPX TYPE STRING,
ZBWST TYPE STRING,
KALKL TYPE STRING,
PPRDL TYPE STRING,
PDATL TYPE STRING,
BWVA2 TYPE STRING,
VERS2 TYPE STRING,
LPLPR TYPE STRING,
LPLPX TYPE STRING,
LBWST TYPE STRING,
KALKV TYPE STRING,
PPRDV TYPE STRING,
PDATV TYPE STRING,
BWVA3 TYPE STRING,
VERS3 TYPE STRING,
VPLPR TYPE STRING,
VPLPX TYPE STRING,
CBWST TYPE STRING,
SET_BY_MARKING TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CKILIST01_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_CKILIST01_STR-BWTAR sy-vline 
WA_CKILIST01_STR-CURTP sy-vline 
WA_CKILIST01_STR-WAERS sy-vline 
WA_CKILIST01_STR-PEINH sy-vline 
WA_CKILIST01_STR-VPRSV sy-vline 
WA_CKILIST01_STR-VERPR sy-vline 
WA_CKILIST01_STR-STPRS sy-vline 
WA_CKILIST01_STR-KALKZ sy-vline 
WA_CKILIST01_STR-PPRDZ sy-vline 
WA_CKILIST01_STR-PDATZ sy-vline 
WA_CKILIST01_STR-BWVA1 sy-vline 
WA_CKILIST01_STR-VERS1 sy-vline 
WA_CKILIST01_STR-ZPLPR sy-vline 
WA_CKILIST01_STR-FPLPX sy-vline 
WA_CKILIST01_STR-ZBWST sy-vline 
WA_CKILIST01_STR-KALKL sy-vline 
WA_CKILIST01_STR-PPRDL sy-vline 
WA_CKILIST01_STR-PDATL sy-vline 
WA_CKILIST01_STR-BWVA2 sy-vline 
WA_CKILIST01_STR-VERS2 sy-vline 
WA_CKILIST01_STR-LPLPR sy-vline 
WA_CKILIST01_STR-LPLPX sy-vline 
WA_CKILIST01_STR-LBWST sy-vline 
WA_CKILIST01_STR-KALKV sy-vline 
WA_CKILIST01_STR-PPRDV sy-vline 
WA_CKILIST01_STR-PDATV sy-vline 
WA_CKILIST01_STR-BWVA3 sy-vline 
WA_CKILIST01_STR-VERS3 sy-vline 
WA_CKILIST01_STR-VPLPR sy-vline 
WA_CKILIST01_STR-VPLPX sy-vline 
WA_CKILIST01_STR-CBWST sy-vline 
WA_CKILIST01_STR-SET_BY_MARKING sy-vline      INTO ld_text SEPARATED BY SPACE.

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