ABAP Select data from SAP table CSKS_CORE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSKS_CORE
*  INTO TABLE @DATA(IT_CSKS_CORE2).
*--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_CSKS_CORE INDEX 1 INTO DATA(WA_CSKS_CORE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CSKS_CORE>-MANDT = 1.
<CSKS_CORE>-KOKRS = 1.
<CSKS_CORE>-KOSTL = 1.
<CSKS_CORE>-DATBI = 1.
<CSKS_CORE>-DATAB = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSKS_CORE-BKZKP, sy-vline,
  WA_CSKS_CORE-PKZKP, sy-vline,
  WA_CSKS_CORE-BUKRS, sy-vline,
  WA_CSKS_CORE-GSBER, sy-vline,
  WA_CSKS_CORE-KOSAR, sy-vline,
  WA_CSKS_CORE-VERAK, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSKS_CORE 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_CSKS_CORE 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_CSKS_CORE INTO WA_CSKS_CORE.


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

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

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

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_CSKS_CORE-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSKS_CORE-SPRAS.
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_CSKS_CORE_STR, 
MANDT TYPE STRING,
KOKRS TYPE STRING,
KOSTL TYPE STRING,
DATBI TYPE STRING,
DATAB TYPE STRING,
BKZKP TYPE STRING,
PKZKP TYPE STRING,
BUKRS TYPE STRING,
GSBER TYPE STRING,
KOSAR TYPE STRING,
VERAK TYPE STRING,
WAERS TYPE STRING,
TXJCD TYPE STRING,
PRCTR TYPE STRING,
WERKS TYPE STRING,
LOGSYSTEM TYPE STRING,
SPRAS TYPE STRING,
KTEXT TYPE STRING,
LTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSKS_CORE_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_CSKS_CORE_STR-MANDT sy-vline 
WA_CSKS_CORE_STR-KOKRS sy-vline 
WA_CSKS_CORE_STR-KOSTL sy-vline 
WA_CSKS_CORE_STR-DATBI sy-vline 
WA_CSKS_CORE_STR-DATAB sy-vline 
WA_CSKS_CORE_STR-BKZKP sy-vline 
WA_CSKS_CORE_STR-PKZKP sy-vline 
WA_CSKS_CORE_STR-BUKRS sy-vline 
WA_CSKS_CORE_STR-GSBER sy-vline 
WA_CSKS_CORE_STR-KOSAR sy-vline 
WA_CSKS_CORE_STR-VERAK sy-vline 
WA_CSKS_CORE_STR-WAERS sy-vline 
WA_CSKS_CORE_STR-TXJCD sy-vline 
WA_CSKS_CORE_STR-PRCTR sy-vline 
WA_CSKS_CORE_STR-WERKS sy-vline 
WA_CSKS_CORE_STR-LOGSYSTEM sy-vline 
WA_CSKS_CORE_STR-SPRAS sy-vline 
WA_CSKS_CORE_STR-KTEXT sy-vline 
WA_CSKS_CORE_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.