ABAP Select data from SAP table KKS00D into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP KKS00D 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 KKS00D. 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 KKS00D 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_KKS00D TYPE STANDARD TABLE OF KKS00D,
      WA_KKS00D TYPE KKS00D,
      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: <KKS00D> TYPE KKS00D.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_KKS00D.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM KKS00D
  INTO TABLE IT_KKS00D.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KKS00D
*  INTO TABLE @DATA(IT_KKS00D2).
*--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_KKS00D INDEX 1 INTO DATA(WA_KKS00D2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KKS00D ASSIGNING <KKS00D>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KKS00D>-TCODE = 1.
<KKS00D>-DYNNR = 1.
<KKS00D>-OKCOD = 1.
<KKS00D>-OBART = 1.
<KKS00D>-TRART = 1.

ENDLOOP.

LOOP AT IT_KKS00D INTO WA_KKS00D.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KKS00D-OBJKT, sy-vline,
  WA_KKS00D-SAMML, sy-vline,
  WA_KKS00D-MODUS, sy-vline,
  WA_KKS00D-VERWS, sy-vline,
  WA_KKS00D-FORTS, sy-vline,
  WA_KKS00D-PRIMS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KKS00D 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_KKS00D 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_KKS00D INTO WA_KKS00D.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_KKS00D_STR, 
TCODE TYPE STRING,
DYNNR TYPE STRING,
OKCOD TYPE STRING,
OBART TYPE STRING,
TRART TYPE STRING,
OBJKT TYPE STRING,
SAMML TYPE STRING,
MODUS TYPE STRING,
VERWS TYPE STRING,
FORTS TYPE STRING,
PRIMS TYPE STRING,
TSTKZ TYPE STRING,
RFCGR TYPE STRING,
TASKS TYPE STRING,
DEBUG TYPE STRING,
STANO TYPE STRING,
STAMD TYPE STRING,
SKASS TYPE STRING,
OBJID TYPE STRING,
USERK TYPE STRING,
DBKNZ TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KKS00D_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_KKS00D_STR-TCODE sy-vline 
WA_KKS00D_STR-DYNNR sy-vline 
WA_KKS00D_STR-OKCOD sy-vline 
WA_KKS00D_STR-OBART sy-vline 
WA_KKS00D_STR-TRART sy-vline 
WA_KKS00D_STR-OBJKT sy-vline 
WA_KKS00D_STR-SAMML sy-vline 
WA_KKS00D_STR-MODUS sy-vline 
WA_KKS00D_STR-VERWS sy-vline 
WA_KKS00D_STR-FORTS sy-vline 
WA_KKS00D_STR-PRIMS sy-vline 
WA_KKS00D_STR-TSTKZ sy-vline 
WA_KKS00D_STR-RFCGR sy-vline 
WA_KKS00D_STR-TASKS sy-vline 
WA_KKS00D_STR-DEBUG sy-vline 
WA_KKS00D_STR-STANO sy-vline 
WA_KKS00D_STR-STAMD sy-vline 
WA_KKS00D_STR-SKASS sy-vline 
WA_KKS00D_STR-OBJID sy-vline 
WA_KKS00D_STR-USERK sy-vline 
WA_KKS00D_STR-DBKNZ sy-vline      INTO ld_text SEPARATED BY SPACE.

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