ABAP Select data from SAP table PTK03 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PTK03 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 PTK03. 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 PTK03 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_PTK03 TYPE STANDARD TABLE OF PTK03,
      WA_PTK03 TYPE PTK03,
      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: <PTK03> TYPE PTK03.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PTK03.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PTK03
  INTO TABLE IT_PTK03.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTK03
*  INTO TABLE @DATA(IT_PTK032).
*--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_PTK03 INDEX 1 INTO DATA(WA_PTK032).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PTK03 ASSIGNING <PTK03>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTK03>-BELNR = 1.
<PTK03>-SPKZL = 1.
<PTK03>-BEART = 1.
<PTK03>-MWSKZ = 1.
<PTK03>-BETRG = 1.

ENDLOOP.

LOOP AT IT_PTK03 INTO WA_PTK03.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTK03-BLDAT, sy-vline,
  WA_PTK03-BTEXT, sy-vline,
  WA_PTK03-WAERS, sy-vline,
  WA_PTK03-KURSB, sy-vline,
  WA_PTK03-FFACT, sy-vline,
  WA_PTK03-TFACT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTK03 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_PTK03 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_PTK03 INTO WA_PTK03.


*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 EXCRT, internal->external for field KURSB
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_PTK03-KURSB
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTK03-KURSB.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field VAT_SRV_DESC_LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_PTK03-VAT_SRV_DESC_LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTK03-VAT_SRV_DESC_LANGU.
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_PTK03_STR, 
BELNR TYPE STRING,
SPKZL TYPE STRING,
BEART TYPE STRING,
MWSKZ TYPE STRING,
BETRG TYPE STRING,
BLDAT TYPE STRING,
BTEXT TYPE STRING,
WAERS TYPE STRING,
KURSB TYPE STRING,
FFACT TYPE STRING,
TFACT TYPE STRING,
ANZFR TYPE STRING,
LNDFR TYPE STRING,
BERFR TYPE STRING,
RGION TYPE STRING,
TXJCD TYPE STRING,
PAYOT TYPE STRING,
PAYCURR TYPE STRING,
ABOVE_LIMIT TYPE STRING,
PROTECT TYPE STRING,
REFNR TYPE STRING,
PAPER_RECEIPT TYPE STRING,
RECEIPT_VALIDATED TYPE STRING,
GENEHM_U_BELEG TYPE STRING,
PAPER_MISSING TYPE STRING,
RECEIPT_NO TYPE STRING,
RECEIPT_ITEM TYPE STRING,
FWSTE TYPE STRING,
VAT_POSTING_TYPE TYPE STRING,
VAT_SERVICE_CODE TYPE STRING,
VAT_SERVICE_DESC TYPE STRING,
VAT_STATUS TYPE STRING,
VAT_CHANGED_MAN TYPE STRING,
DIFF_VIOLATION TYPE STRING,
VAT_SUB_SRV_CODE TYPE STRING,
VAT_SRV_DESC_LANGU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTK03_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_PTK03_STR-BELNR sy-vline 
WA_PTK03_STR-SPKZL sy-vline 
WA_PTK03_STR-BEART sy-vline 
WA_PTK03_STR-MWSKZ sy-vline 
WA_PTK03_STR-BETRG sy-vline 
WA_PTK03_STR-BLDAT sy-vline 
WA_PTK03_STR-BTEXT sy-vline 
WA_PTK03_STR-WAERS sy-vline 
WA_PTK03_STR-KURSB sy-vline 
WA_PTK03_STR-FFACT sy-vline 
WA_PTK03_STR-TFACT sy-vline 
WA_PTK03_STR-ANZFR sy-vline 
WA_PTK03_STR-LNDFR sy-vline 
WA_PTK03_STR-BERFR sy-vline 
WA_PTK03_STR-RGION sy-vline 
WA_PTK03_STR-TXJCD sy-vline 
WA_PTK03_STR-PAYOT sy-vline 
WA_PTK03_STR-PAYCURR sy-vline 
WA_PTK03_STR-ABOVE_LIMIT sy-vline 
WA_PTK03_STR-PROTECT sy-vline 
WA_PTK03_STR-REFNR sy-vline 
WA_PTK03_STR-PAPER_RECEIPT sy-vline 
WA_PTK03_STR-RECEIPT_VALIDATED sy-vline 
WA_PTK03_STR-GENEHM_U_BELEG sy-vline 
WA_PTK03_STR-PAPER_MISSING sy-vline 
WA_PTK03_STR-RECEIPT_NO sy-vline 
WA_PTK03_STR-RECEIPT_ITEM sy-vline 
WA_PTK03_STR-FWSTE sy-vline 
WA_PTK03_STR-VAT_POSTING_TYPE sy-vline 
WA_PTK03_STR-VAT_SERVICE_CODE sy-vline 
WA_PTK03_STR-VAT_SERVICE_DESC sy-vline 
WA_PTK03_STR-VAT_STATUS sy-vline 
WA_PTK03_STR-VAT_CHANGED_MAN sy-vline 
WA_PTK03_STR-DIFF_VIOLATION sy-vline 
WA_PTK03_STR-VAT_SUB_SRV_CODE sy-vline 
WA_PTK03_STR-VAT_SRV_DESC_LANGU sy-vline      INTO ld_text SEPARATED BY SPACE.

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