ABAP Select data from SAP table KKS1 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 KKS1 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 KKS1. 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 KKS1 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_KKS1 TYPE STANDARD TABLE OF KKS1,
      WA_KKS1 TYPE KKS1,
      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: <KKS1> TYPE KKS1.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_KKS1.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM KKS1
  INTO TABLE IT_KKS1.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KKS1
*  INTO TABLE @DATA(IT_KKS12).
*--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_KKS1 INDEX 1 INTO DATA(WA_KKS12).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KKS1 ASSIGNING <KKS1>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KKS1>-MANDT = 1.
<KKS1>-KOKRS = 1.
<KKS1>-KALNR = 1.
<KKS1>-WTTYP = 1.
<KKS1>-VERSN = 1.

ENDLOOP.

LOOP AT IT_KKS1 INTO WA_KKS1.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KKS1-KKART, sy-vline,
  WA_KKS1-GJAHR, sy-vline,
  WA_KKS1-ERFDT, sy-vline,
  WA_KKS1-ERFNM, sy-vline,
  WA_KKS1-AENDT, sy-vline,
  WA_KKS1-AENNM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KKS1 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_KKS1 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_KKS1 INTO WA_KKS1.


*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 GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_KKS1-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKS1-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEEHT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_KKS1-MEEHT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKS1-MEEHT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field UKURS
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_KKS1-UKURS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKS1-UKURS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field SPRAS
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_KKS1-SPRAS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KKS1-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_KKS1_STR, 
MANDT TYPE STRING,
KOKRS TYPE STRING,
KALNR TYPE STRING,
WTTYP TYPE STRING,
VERSN TYPE STRING,
KKART TYPE STRING,
GJAHR TYPE STRING,
ERFDT TYPE STRING,
ERFNM TYPE STRING,
AENDT TYPE STRING,
AENNM TYPE STRING,
ABSDT TYPE STRING,
ABSNM TYPE STRING,
STATK TYPE STRING,
STRNG TYPE STRING,
PSDAT TYPE STRING,
MENGE TYPE STRING,
MEEHT TYPE STRING,
HWGES TYPE STRING,
FWGES TYPE STRING,
HWAER TYPE STRING,
FWAER TYPE STRING,
UKURS TYPE STRING,
KURST TYPE STRING,
FFACT TYPE STRING,
TFACT TYPE STRING,
GWRT1 TYPE STRING,
GWRT2 TYPE STRING,
GWRT3 TYPE STRING,
GWRT4 TYPE STRING,
GWRT5 TYPE STRING,
STFLG TYPE STRING,
ZTFLG TYPE STRING,
FVFLG TYPE STRING,
DLFLG TYPE STRING,
FRFLG TYPE STRING,
PRVFN TYPE STRING,
PKANZ TYPE STRING,
BZOBJ TYPE STRING,
PSANZ TYPE STRING,
KNNZ1 TYPE STRING,
KNNZ2 TYPE STRING,
KNNZ3 TYPE STRING,
KNNZ4 TYPE STRING,
KNNZ5 TYPE STRING,
SPRAS TYPE STRING,
TXN08 TYPE STRING,
KTEXT TYPE STRING,
LTEXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KKS1_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_KKS1_STR-MANDT sy-vline 
WA_KKS1_STR-KOKRS sy-vline 
WA_KKS1_STR-KALNR sy-vline 
WA_KKS1_STR-WTTYP sy-vline 
WA_KKS1_STR-VERSN sy-vline 
WA_KKS1_STR-KKART sy-vline 
WA_KKS1_STR-GJAHR sy-vline 
WA_KKS1_STR-ERFDT sy-vline 
WA_KKS1_STR-ERFNM sy-vline 
WA_KKS1_STR-AENDT sy-vline 
WA_KKS1_STR-AENNM sy-vline 
WA_KKS1_STR-ABSDT sy-vline 
WA_KKS1_STR-ABSNM sy-vline 
WA_KKS1_STR-STATK sy-vline 
WA_KKS1_STR-STRNG sy-vline 
WA_KKS1_STR-PSDAT sy-vline 
WA_KKS1_STR-MENGE sy-vline 
WA_KKS1_STR-MEEHT sy-vline 
WA_KKS1_STR-HWGES sy-vline 
WA_KKS1_STR-FWGES sy-vline 
WA_KKS1_STR-HWAER sy-vline 
WA_KKS1_STR-FWAER sy-vline 
WA_KKS1_STR-UKURS sy-vline 
WA_KKS1_STR-KURST sy-vline 
WA_KKS1_STR-FFACT sy-vline 
WA_KKS1_STR-TFACT sy-vline 
WA_KKS1_STR-GWRT1 sy-vline 
WA_KKS1_STR-GWRT2 sy-vline 
WA_KKS1_STR-GWRT3 sy-vline 
WA_KKS1_STR-GWRT4 sy-vline 
WA_KKS1_STR-GWRT5 sy-vline 
WA_KKS1_STR-STFLG sy-vline 
WA_KKS1_STR-ZTFLG sy-vline 
WA_KKS1_STR-FVFLG sy-vline 
WA_KKS1_STR-DLFLG sy-vline 
WA_KKS1_STR-FRFLG sy-vline 
WA_KKS1_STR-PRVFN sy-vline 
WA_KKS1_STR-PKANZ sy-vline 
WA_KKS1_STR-BZOBJ sy-vline 
WA_KKS1_STR-PSANZ sy-vline 
WA_KKS1_STR-KNNZ1 sy-vline 
WA_KKS1_STR-KNNZ2 sy-vline 
WA_KKS1_STR-KNNZ3 sy-vline 
WA_KKS1_STR-KNNZ4 sy-vline 
WA_KKS1_STR-KNNZ5 sy-vline 
WA_KKS1_STR-SPRAS sy-vline 
WA_KKS1_STR-TXN08 sy-vline 
WA_KKS1_STR-KTEXT sy-vline 
WA_KKS1_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.