ABAP Select data from SAP table KKS01 into internal table

Get Example source ABAP code based on a different SAP table
  Get ABAP code

Below is a number of ABAP code snippets to demonstrate how to select data from SAP KKS01 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 KKS01. 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 KKS01 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_KKS01 TYPE STANDARD TABLE OF KKS01,
      WA_KKS01 TYPE KKS01,
      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: <KKS01> TYPE KKS01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_KKS01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM KKS01
  INTO TABLE IT_KKS01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KKS01
*  INTO TABLE @DATA(IT_KKS012).
*--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_KKS01 INDEX 1 INTO DATA(WA_KKS012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KKS01 ASSIGNING <KKS01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KKS01>-SELKZ = 1.
<KKS01>-AUFNR = 1.
<KKS01>-POSNR = 1.
<KKS01>-AWVRS = 1.
<KKS01>-WERKS = 1.

ENDLOOP.

LOOP AT IT_KKS01 INTO WA_KKS01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KKS01-MATNR, sy-vline,
  WA_KKS01-VERID, sy-vline,
  WA_KKS01-SAFNR, sy-vline,
  WA_KKS01-PROCNR, sy-vline,
  WA_KKS01-AUART, sy-vline,
  WA_KKS01-AUTYP, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KKS01 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_KKS01 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_KKS01 INTO WA_KKS01.


*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 AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KKS01-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKS01-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AWVRS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KKS01-AWVRS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKS01-AWVRS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_KKS01-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKS01-MATNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SAFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KKS01-SAFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKS01-SAFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LAUFN
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KKS01-LAUFN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKS01-LAUFN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ABPSP, internal->external for field PROJN
CALL FUNCTION 'CONVERSION_EXIT_ABPSP_OUTPUT'
  EXPORTING
    input =                      WA_KKS01-PROJN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKS01-PROJN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KDAUF
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KKS01-KDAUF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKS01-KDAUF.
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_KKS01_STR, 
SELKZ TYPE STRING,
AUFNR TYPE STRING,
POSNR TYPE STRING,
AWVRS TYPE STRING,
WERKS TYPE STRING,
MATNR TYPE STRING,
VERID TYPE STRING,
SAFNR TYPE STRING,
PROCNR TYPE STRING,
AUART TYPE STRING,
AUTYP TYPE STRING,
KSTRG TYPE STRING,
LAUFN TYPE STRING,
MLTPS TYPE STRING,
PROJN TYPE STRING,
KDAUF TYPE STRING,
KDPOS TYPE STRING,
OBJID TYPE STRING,
OBJNP TYPE STRING,
SUBRC TYPE STRING,
MSGID TYPE STRING,
MSGTY TYPE STRING,
MSGNO TYPE STRING,
MSGV1 TYPE STRING,
MSGV2 TYPE STRING,
MSGV3 TYPE STRING,
MSGV4 TYPE STRING,
MSGTX TYPE STRING,
SICON TYPE STRING,
RICON TYPE STRING,
INITI TYPE STRING,
FILTR TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KKS01_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_KKS01_STR-SELKZ sy-vline 
WA_KKS01_STR-AUFNR sy-vline 
WA_KKS01_STR-POSNR sy-vline 
WA_KKS01_STR-AWVRS sy-vline 
WA_KKS01_STR-WERKS sy-vline 
WA_KKS01_STR-MATNR sy-vline 
WA_KKS01_STR-VERID sy-vline 
WA_KKS01_STR-SAFNR sy-vline 
WA_KKS01_STR-PROCNR sy-vline 
WA_KKS01_STR-AUART sy-vline 
WA_KKS01_STR-AUTYP sy-vline 
WA_KKS01_STR-KSTRG sy-vline 
WA_KKS01_STR-LAUFN sy-vline 
WA_KKS01_STR-MLTPS sy-vline 
WA_KKS01_STR-PROJN sy-vline 
WA_KKS01_STR-KDAUF sy-vline 
WA_KKS01_STR-KDPOS sy-vline 
WA_KKS01_STR-OBJID sy-vline 
WA_KKS01_STR-OBJNP sy-vline 
WA_KKS01_STR-SUBRC sy-vline 
WA_KKS01_STR-MSGID sy-vline 
WA_KKS01_STR-MSGTY sy-vline 
WA_KKS01_STR-MSGNO sy-vline 
WA_KKS01_STR-MSGV1 sy-vline 
WA_KKS01_STR-MSGV2 sy-vline 
WA_KKS01_STR-MSGV3 sy-vline 
WA_KKS01_STR-MSGV4 sy-vline 
WA_KKS01_STR-MSGTX sy-vline 
WA_KKS01_STR-SICON sy-vline 
WA_KKS01_STR-RICON sy-vline 
WA_KKS01_STR-INITI sy-vline 
WA_KKS01_STR-FILTR sy-vline      INTO ld_text SEPARATED BY SPACE.

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