ABAP Select data from SAP table /1CN/STXSAPD0003 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP /1CN/STXSAPD0003 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 /1CN/STXSAPD0003. 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 /1CN/STXSAPD0003 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_/1CN/STXSAPD0003 TYPE STANDARD TABLE OF /1CN/STXSAPD0003,
      WA_/1CN/STXSAPD0003 TYPE /1CN/STXSAPD0003,
      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: </1CN/STXSAPD0003> TYPE /1CN/STXSAPD0003.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_/1CN/STXSAPD0003.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM /1CN/STXSAPD0003
  INTO TABLE IT_/1CN/STXSAPD0003.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM /1CN/STXSAPD0003
*  INTO TABLE @DATA(IT_/1CN/STXSAPD00032).
*--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_/1CN/STXSAPD0003 INDEX 1 INTO DATA(WA_/1CN/STXSAPD00032).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_/1CN/STXSAPD0003 ASSIGNING </1CN/STXSAPD0003>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
</1CN/STXSAPD0003>-CLIENT = 1.
</1CN/STXSAPD0003>-VARNUMH = 1.
</1CN/STXSAPD0003>-STFKZ = 1.
</1CN/STXSAPD0003>-KZBZG = 1.
</1CN/STXSAPD0003>-KUMZA = 1.

ENDLOOP.

LOOP AT IT_/1CN/STXSAPD0003 INTO WA_/1CN/STXSAPD0003.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_/1CN/STXSAPD0003-KUMNE, sy-vline,
  WA_/1CN/STXSAPD0003-EXPNT, sy-vline,
  WA_/1CN/STXSAPD0003-MWSK1, sy-vline,
  WA_/1CN/STXSAPD0003-MWSK2, sy-vline,
  WA_/1CN/STXSAPD0003-KONMS, sy-vline,
  WA_/1CN/STXSAPD0003-KONWS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_/1CN/STXSAPD0003 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_/1CN/STXSAPD0003 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_/1CN/STXSAPD0003 INTO WA_/1CN/STXSAPD0003.


*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 CUNIT, internal->external for field KONMS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/1CN/STXSAPD0003-KONMS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/1CN/STXSAPD0003-KONMS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field MEINS
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_/1CN/STXSAPD0003-MEINS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_/1CN/STXSAPD0003-MEINS.
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_/1CN/STXSAPD0003_STR, 
CLIENT TYPE STRING,
VARNUMH TYPE STRING,
STFKZ TYPE STRING,
KZBZG TYPE STRING,
KUMZA TYPE STRING,
KUMNE TYPE STRING,
EXPNT TYPE STRING,
MWSK1 TYPE STRING,
MWSK2 TYPE STRING,
KONMS TYPE STRING,
KONWS TYPE STRING,
KSTBM TYPE STRING,
MEINS TYPE STRING,
KZNEP TYPE STRING,
MXWRT TYPE STRING,
GKWRT TYPE STRING,
PTERM TYPE STRING,
VALDT TYPE STRING,
VALTG TYPE STRING,END OF T_EKKO_STR.
DATA: WA_/1CN/STXSAPD0003_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_/1CN/STXSAPD0003_STR-CLIENT sy-vline 
WA_/1CN/STXSAPD0003_STR-VARNUMH sy-vline 
WA_/1CN/STXSAPD0003_STR-STFKZ sy-vline 
WA_/1CN/STXSAPD0003_STR-KZBZG sy-vline 
WA_/1CN/STXSAPD0003_STR-KUMZA sy-vline 
WA_/1CN/STXSAPD0003_STR-KUMNE sy-vline 
WA_/1CN/STXSAPD0003_STR-EXPNT sy-vline 
WA_/1CN/STXSAPD0003_STR-MWSK1 sy-vline 
WA_/1CN/STXSAPD0003_STR-MWSK2 sy-vline 
WA_/1CN/STXSAPD0003_STR-KONMS sy-vline 
WA_/1CN/STXSAPD0003_STR-KONWS sy-vline 
WA_/1CN/STXSAPD0003_STR-KSTBM sy-vline 
WA_/1CN/STXSAPD0003_STR-MEINS sy-vline 
WA_/1CN/STXSAPD0003_STR-KZNEP sy-vline 
WA_/1CN/STXSAPD0003_STR-MXWRT sy-vline 
WA_/1CN/STXSAPD0003_STR-GKWRT sy-vline 
WA_/1CN/STXSAPD0003_STR-PTERM sy-vline 
WA_/1CN/STXSAPD0003_STR-VALDT sy-vline 
WA_/1CN/STXSAPD0003_STR-VALTG sy-vline      INTO ld_text SEPARATED BY SPACE.

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