ABAP Select data from SAP table KSA0_HD into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP KSA0_HD 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 KSA0_HD. 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 KSA0_HD 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_KSA0_HD TYPE STANDARD TABLE OF KSA0_HD,
      WA_KSA0_HD TYPE KSA0_HD,
      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: <KSA0_HD> TYPE KSA0_HD.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_KSA0_HD.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM KSA0_HD
  INTO TABLE IT_KSA0_HD.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM KSA0_HD
*  INTO TABLE @DATA(IT_KSA0_HD2).
*--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_KSA0_HD INDEX 1 INTO DATA(WA_KSA0_HD2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_KSA0_HD ASSIGNING <KSA0_HD>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<KSA0_HD>-KOKRS_VAL = 1.
<KSA0_HD>-KOKRS_TXT = 1.
<KSA0_HD>-KVEWE_VAL = 1.
<KSA0_HD>-KVEWE_TXT = 1.
<KSA0_HD>-KAPPL_VAL = 1.

ENDLOOP.

LOOP AT IT_KSA0_HD INTO WA_KSA0_HD.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_KSA0_HD-KAPPL_TXT, sy-vline,
  WA_KSA0_HD-KALSM_VAL, sy-vline,
  WA_KSA0_HD-KALSM_TXT, sy-vline,
  WA_KSA0_HD-BKOND_VAL, sy-vline,
  WA_KSA0_HD-BKOND_TXT, sy-vline,
  WA_KSA0_HD-ZKOND_VAL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_KSA0_HD 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_KSA0_HD 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_KSA0_HD INTO WA_KSA0_HD.


*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 KOTAB, internal->external for field KOTAB_VAL
CALL FUNCTION 'CONVERSION_EXIT_KOTAB_OUTPUT'
  EXPORTING
    input =                      WA_KSA0_HD-KOTAB_VAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KSA0_HD-KOTAB_VAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit KOTAB, internal->external for field KOTA2_VAL
CALL FUNCTION 'CONVERSION_EXIT_KOTAB_OUTPUT'
  EXPORTING
    input =                      WA_KSA0_HD-KOTA2_VAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KSA0_HD-KOTA2_VAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit KOTAB, internal->external for field KOTA3_VAL
CALL FUNCTION 'CONVERSION_EXIT_KOTAB_OUTPUT'
  EXPORTING
    input =                      WA_KSA0_HD-KOTA3_VAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KSA0_HD-KOTA3_VAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field KSTAR_VAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KSA0_HD-KSTAR_VAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KSA0_HD-KSTAR_VAL.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR_VON
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_KSA0_HD-GJAHR_VON
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KSA0_HD-GJAHR_VON.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR_BIS
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_KSA0_HD-GJAHR_BIS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KSA0_HD-GJAHR_BIS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field VERSN_VAL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_KSA0_HD-VERSN_VAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_KSA0_HD-VERSN_VAL.
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_KSA0_HD_STR, 
KOKRS_VAL TYPE STRING,
KOKRS_TXT TYPE STRING,
KVEWE_VAL TYPE STRING,
KVEWE_TXT TYPE STRING,
KAPPL_VAL TYPE STRING,
KAPPL_TXT TYPE STRING,
KALSM_VAL TYPE STRING,
KALSM_TXT TYPE STRING,
BKOND_VAL TYPE STRING,
BKOND_TXT TYPE STRING,
ZKOND_VAL TYPE STRING,
ZKOND_TXT TYPE STRING,
KOZGF_VAL TYPE STRING,
KOZGF_TXT TYPE STRING,
KOTAB_SEL TYPE STRING,
KOTAB_VAL TYPE STRING,
KOTAB_TXT TYPE STRING,
KOTA2_SEL TYPE STRING,
KOTA2_VAL TYPE STRING,
KOTA2_TXT TYPE STRING,
KOTA3_SEL TYPE STRING,
KOTA3_VAL TYPE STRING,
KOTA3_TXT TYPE STRING,
ZUENT_VAL TYPE STRING,
ZUENT_TXT TYPE STRING,
KSTAR_VAL TYPE STRING,
KSTAR_TXT TYPE STRING,
STATUS TYPE STRING,
GJAHR_VON TYPE STRING,
PERIO_VON TYPE STRING,
GJAHR_BIS TYPE STRING,
PERIO_BIS TYPE STRING,
IST_PLAN TYPE STRING,
VERSN_VAL TYPE STRING,
VERSN_TXT TYPE STRING,
INDEX_POS TYPE STRING,
INDEX_MAX TYPE STRING,
HEAD1_WRD TYPE STRING,
HEAD1_VAL TYPE STRING,
HEAD1_TXT TYPE STRING,
HEAD2_WRD TYPE STRING,
HEAD2_VAL TYPE STRING,
HEAD2_TXT TYPE STRING,
DATUM_AB TYPE STRING,
DATUM_BIS TYPE STRING,
FUNKT_VAL TYPE STRING,
FUNKT_TXT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_KSA0_HD_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_KSA0_HD_STR-KOKRS_VAL sy-vline 
WA_KSA0_HD_STR-KOKRS_TXT sy-vline 
WA_KSA0_HD_STR-KVEWE_VAL sy-vline 
WA_KSA0_HD_STR-KVEWE_TXT sy-vline 
WA_KSA0_HD_STR-KAPPL_VAL sy-vline 
WA_KSA0_HD_STR-KAPPL_TXT sy-vline 
WA_KSA0_HD_STR-KALSM_VAL sy-vline 
WA_KSA0_HD_STR-KALSM_TXT sy-vline 
WA_KSA0_HD_STR-BKOND_VAL sy-vline 
WA_KSA0_HD_STR-BKOND_TXT sy-vline 
WA_KSA0_HD_STR-ZKOND_VAL sy-vline 
WA_KSA0_HD_STR-ZKOND_TXT sy-vline 
WA_KSA0_HD_STR-KOZGF_VAL sy-vline 
WA_KSA0_HD_STR-KOZGF_TXT sy-vline 
WA_KSA0_HD_STR-KOTAB_SEL sy-vline 
WA_KSA0_HD_STR-KOTAB_VAL sy-vline 
WA_KSA0_HD_STR-KOTAB_TXT sy-vline 
WA_KSA0_HD_STR-KOTA2_SEL sy-vline 
WA_KSA0_HD_STR-KOTA2_VAL sy-vline 
WA_KSA0_HD_STR-KOTA2_TXT sy-vline 
WA_KSA0_HD_STR-KOTA3_SEL sy-vline 
WA_KSA0_HD_STR-KOTA3_VAL sy-vline 
WA_KSA0_HD_STR-KOTA3_TXT sy-vline 
WA_KSA0_HD_STR-ZUENT_VAL sy-vline 
WA_KSA0_HD_STR-ZUENT_TXT sy-vline 
WA_KSA0_HD_STR-KSTAR_VAL sy-vline 
WA_KSA0_HD_STR-KSTAR_TXT sy-vline 
WA_KSA0_HD_STR-STATUS sy-vline 
WA_KSA0_HD_STR-GJAHR_VON sy-vline 
WA_KSA0_HD_STR-PERIO_VON sy-vline 
WA_KSA0_HD_STR-GJAHR_BIS sy-vline 
WA_KSA0_HD_STR-PERIO_BIS sy-vline 
WA_KSA0_HD_STR-IST_PLAN sy-vline 
WA_KSA0_HD_STR-VERSN_VAL sy-vline 
WA_KSA0_HD_STR-VERSN_TXT sy-vline 
WA_KSA0_HD_STR-INDEX_POS sy-vline 
WA_KSA0_HD_STR-INDEX_MAX sy-vline 
WA_KSA0_HD_STR-HEAD1_WRD sy-vline 
WA_KSA0_HD_STR-HEAD1_VAL sy-vline 
WA_KSA0_HD_STR-HEAD1_TXT sy-vline 
WA_KSA0_HD_STR-HEAD2_WRD sy-vline 
WA_KSA0_HD_STR-HEAD2_VAL sy-vline 
WA_KSA0_HD_STR-HEAD2_TXT sy-vline 
WA_KSA0_HD_STR-DATUM_AB sy-vline 
WA_KSA0_HD_STR-DATUM_BIS sy-vline 
WA_KSA0_HD_STR-FUNKT_VAL sy-vline 
WA_KSA0_HD_STR-FUNKT_TXT sy-vline      INTO ld_text SEPARATED BY SPACE.

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