ABAP Select data from SAP table KBAS_SX_CELEM_CSKA into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KBAS_SX_CELEM_CSKA
*  INTO TABLE @DATA(IT_KBAS_SX_CELEM_CSKA2).
*--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_KBAS_SX_CELEM_CSKA INDEX 1 INTO DATA(WA_KBAS_SX_CELEM_CSKA2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KBAS_SX_CELEM_CSKA>-CONTROL = 1.
<KBAS_SX_CELEM_CSKA>-CSKA = 1.
<KBAS_SX_CELEM_CSKA>-MANDT = 1.
<KBAS_SX_CELEM_CSKA>-KTOPL = 1.
<KBAS_SX_CELEM_CSKA>-KSTAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KBAS_SX_CELEM_CSKA-ERSDA, sy-vline,
  WA_KBAS_SX_CELEM_CSKA-USNAM, sy-vline,
  WA_KBAS_SX_CELEM_CSKA-STEKZ, sy-vline,
  WA_KBAS_SX_CELEM_CSKA-ZAHKZ, sy-vline,
  WA_KBAS_SX_CELEM_CSKA-KSTSN, sy-vline,
  WA_KBAS_SX_CELEM_CSKA-FUNC_AREA, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KBAS_SX_CELEM_CSKA 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_KBAS_SX_CELEM_CSKA 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_KBAS_SX_CELEM_CSKA INTO WA_KBAS_SX_CELEM_CSKA.


*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 KSTAR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KBAS_SX_CELEM_CSKA-KSTAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KBAS_SX_CELEM_CSKA-KSTAR.
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_KBAS_SX_CELEM_CSKA_STR, 
CONTROL TYPE STRING,
CSKA TYPE STRING,
MANDT TYPE STRING,
KTOPL TYPE STRING,
KSTAR TYPE STRING,
ERSDA TYPE STRING,
USNAM TYPE STRING,
STEKZ TYPE STRING,
ZAHKZ TYPE STRING,
KSTSN TYPE STRING,
FUNC_AREA TYPE STRING,
EXTENSION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KBAS_SX_CELEM_CSKA_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_KBAS_SX_CELEM_CSKA_STR-CONTROL sy-vline 
WA_KBAS_SX_CELEM_CSKA_STR-CSKA sy-vline 
WA_KBAS_SX_CELEM_CSKA_STR-MANDT sy-vline 
WA_KBAS_SX_CELEM_CSKA_STR-KTOPL sy-vline 
WA_KBAS_SX_CELEM_CSKA_STR-KSTAR sy-vline 
WA_KBAS_SX_CELEM_CSKA_STR-ERSDA sy-vline 
WA_KBAS_SX_CELEM_CSKA_STR-USNAM sy-vline 
WA_KBAS_SX_CELEM_CSKA_STR-STEKZ sy-vline 
WA_KBAS_SX_CELEM_CSKA_STR-ZAHKZ sy-vline 
WA_KBAS_SX_CELEM_CSKA_STR-KSTSN sy-vline 
WA_KBAS_SX_CELEM_CSKA_STR-FUNC_AREA sy-vline 
WA_KBAS_SX_CELEM_CSKA_STR-EXTENSION sy-vline      INTO ld_text SEPARATED BY SPACE.

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