ABAP Select data from SAP table KSS10 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP KSS10 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 KSS10. 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 KSS10 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_KSS10 TYPE STANDARD TABLE OF KSS10,
      WA_KSS10 TYPE KSS10,
      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: <KSS10> TYPE KSS10.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_KSS10.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM KSS10
  INTO TABLE IT_KSS10.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KSS10
*  INTO TABLE @DATA(IT_KSS102).
*--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_KSS10 INDEX 1 INTO DATA(WA_KSS102).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KSS10 ASSIGNING <KSS10>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KSS10>-KOKRS = 1.
<KSS10>-KOKRS_TXT = 1.
<KSS10>-GJAHR1 = 1.
<KSS10>-GJAHR2 = 1.
<KSS10>-PERIO1 = 1.

ENDLOOP.

LOOP AT IT_KSS10 INTO WA_KSS10.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KSS10-PERIO2, sy-vline,
  WA_KSS10-OBJID, sy-vline,
  WA_KSS10-WAERS, sy-vline,
  WA_KSS10-WAERS_TXT, sy-vline,
  WA_KSS10-AWVRS, sy-vline,
  WA_KSS10-AWVRS_TXT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KSS10 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_KSS10 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_KSS10 INTO WA_KSS10.


*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 GJAHR1
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_KSS10-GJAHR1
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KSS10-GJAHR1.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR2
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_KSS10-GJAHR2
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KSS10-GJAHR2.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AWVRS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KSS10-AWVRS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KSS10-AWVRS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KOSTL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KSS10-KOSTL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KSS10-KOSTL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRZNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KSS10-PRZNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KSS10-PRZNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KSS10-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KSS10-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SAFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KSS10-SAFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KSS10-SAFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_KSS10-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KSS10-MATNR.
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_KSS10_STR, 
KOKRS TYPE STRING,
KOKRS_TXT TYPE STRING,
GJAHR1 TYPE STRING,
GJAHR2 TYPE STRING,
PERIO1 TYPE STRING,
PERIO2 TYPE STRING,
OBJID TYPE STRING,
WAERS TYPE STRING,
WAERS_TXT TYPE STRING,
AWVRS TYPE STRING,
AWVRS_TXT TYPE STRING,
KAGRU TYPE STRING,
KAGRU_TXT TYPE STRING,
KOSTL TYPE STRING,
KOSTL_TXT TYPE STRING,
LSTAR TYPE STRING,
LSTAR_TXT TYPE STRING,
PRZNR TYPE STRING,
PRZNR_TXT TYPE STRING,
AUFNR TYPE STRING,
AUFNR_TXT TYPE STRING,
KSTRG TYPE STRING,
KSTRG_TXT TYPE STRING,
WERKS TYPE STRING,
WERKS_TXT TYPE STRING,
POSNR TYPE STRING,
SAFNR TYPE STRING,
SAFNR_TXT TYPE STRING,
MATNR TYPE STRING,
MATNR_TXT TYPE STRING,
VERID TYPE STRING,
VERID_TXT TYPE STRING,
PROCNR TYPE STRING,
PROCNR_TXT TYPE STRING,
STEP_1 TYPE STRING,
STEP_2 TYPE STRING,
STEP_3 TYPE STRING,
STEP_4 TYPE STRING,
STEP_1B TYPE STRING,
STEP_2B TYPE STRING,
STEP_3B TYPE STRING,
STEP_1C TYPE STRING,
STEP_2C TYPE STRING,
ERR_MAX TYPE STRING,
ERR_COUNT TYPE STRING,
AWKUM TYPE STRING,
VRBEZ TYPE STRING,
VARNR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KSS10_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_KSS10_STR-KOKRS sy-vline 
WA_KSS10_STR-KOKRS_TXT sy-vline 
WA_KSS10_STR-GJAHR1 sy-vline 
WA_KSS10_STR-GJAHR2 sy-vline 
WA_KSS10_STR-PERIO1 sy-vline 
WA_KSS10_STR-PERIO2 sy-vline 
WA_KSS10_STR-OBJID sy-vline 
WA_KSS10_STR-WAERS sy-vline 
WA_KSS10_STR-WAERS_TXT sy-vline 
WA_KSS10_STR-AWVRS sy-vline 
WA_KSS10_STR-AWVRS_TXT sy-vline 
WA_KSS10_STR-KAGRU sy-vline 
WA_KSS10_STR-KAGRU_TXT sy-vline 
WA_KSS10_STR-KOSTL sy-vline 
WA_KSS10_STR-KOSTL_TXT sy-vline 
WA_KSS10_STR-LSTAR sy-vline 
WA_KSS10_STR-LSTAR_TXT sy-vline 
WA_KSS10_STR-PRZNR sy-vline 
WA_KSS10_STR-PRZNR_TXT sy-vline 
WA_KSS10_STR-AUFNR sy-vline 
WA_KSS10_STR-AUFNR_TXT sy-vline 
WA_KSS10_STR-KSTRG sy-vline 
WA_KSS10_STR-KSTRG_TXT sy-vline 
WA_KSS10_STR-WERKS sy-vline 
WA_KSS10_STR-WERKS_TXT sy-vline 
WA_KSS10_STR-POSNR sy-vline 
WA_KSS10_STR-SAFNR sy-vline 
WA_KSS10_STR-SAFNR_TXT sy-vline 
WA_KSS10_STR-MATNR sy-vline 
WA_KSS10_STR-MATNR_TXT sy-vline 
WA_KSS10_STR-VERID sy-vline 
WA_KSS10_STR-VERID_TXT sy-vline 
WA_KSS10_STR-PROCNR sy-vline 
WA_KSS10_STR-PROCNR_TXT sy-vline 
WA_KSS10_STR-STEP_1 sy-vline 
WA_KSS10_STR-STEP_2 sy-vline 
WA_KSS10_STR-STEP_3 sy-vline 
WA_KSS10_STR-STEP_4 sy-vline 
WA_KSS10_STR-STEP_1B sy-vline 
WA_KSS10_STR-STEP_2B sy-vline 
WA_KSS10_STR-STEP_3B sy-vline 
WA_KSS10_STR-STEP_1C sy-vline 
WA_KSS10_STR-STEP_2C sy-vline 
WA_KSS10_STR-ERR_MAX sy-vline 
WA_KSS10_STR-ERR_COUNT sy-vline 
WA_KSS10_STR-AWKUM sy-vline 
WA_KSS10_STR-VRBEZ sy-vline 
WA_KSS10_STR-VARNR sy-vline      INTO ld_text SEPARATED BY SPACE.

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