ABAP Select data from SAP table PTAXRECON01 into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PTAXRECON01 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 PTAXRECON01. 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 PTAXRECON01 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_PTAXRECON01 TYPE STANDARD TABLE OF PTAXRECON01,
      WA_PTAXRECON01 TYPE PTAXRECON01,
      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: <PTAXRECON01> TYPE PTAXRECON01.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_PTAXRECON01.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM PTAXRECON01
  INTO TABLE IT_PTAXRECON01.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTAXRECON01
*  INTO TABLE @DATA(IT_PTAXRECON012).
*--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_PTAXRECON01 INDEX 1 INTO DATA(WA_PTAXRECON012).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_PTAXRECON01 ASSIGNING <PTAXRECON01>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTAXRECON01>-MANDT = 1.
<PTAXRECON01>-BUKRS = 1.
<PTAXRECON01>-BELNR = 1.
<PTAXRECON01>-MWSKZ = 1.
<PTAXRECON01>-TAX_COUNTRY = 1.

ENDLOOP.

LOOP AT IT_PTAXRECON01 INTO WA_PTAXRECON01.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTAXRECON01-TXDAT_FROM, sy-vline,
  WA_PTAXRECON01-GJAHR, sy-vline,
  WA_PTAXRECON01-BUZEI, sy-vline,
  WA_PTAXRECON01-KTOSL, sy-vline,
  WA_PTAXRECON01-DMBTR, sy-vline,
  WA_PTAXRECON01-TXBHW, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTAXRECON01 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_PTAXRECON01 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_PTAXRECON01 INTO WA_PTAXRECON01.


*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 BELNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PTAXRECON01-BELNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTAXRECON01-BELNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PTAXRECON01-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTAXRECON01-GJAHR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field HKONT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PTAXRECON01-HKONT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTAXRECON01-HKONT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field LOKKT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PTAXRECON01-LOKKT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTAXRECON01-LOKKT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ALTKT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PTAXRECON01-ALTKT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTAXRECON01-ALTKT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field PRCTR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PTAXRECON01-PRCTR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTAXRECON01-PRCTR.
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_PTAXRECON01_STR, 
MANDT TYPE STRING,
BUKRS TYPE STRING,
BELNR TYPE STRING,
MWSKZ TYPE STRING,
TAX_COUNTRY TYPE STRING,
TXDAT_FROM TYPE STRING,
GJAHR TYPE STRING,
BUZEI TYPE STRING,
KTOSL TYPE STRING,
DMBTR TYPE STRING,
TXBHW TYPE STRING,
HWBAS TYPE STRING,
CALCULATED TYPE STRING,
SUBTOTAL TYPE STRING,
POSTED TYPE STRING,
HWSTE TYPE STRING,
KBETR TYPE STRING,
HKONT TYPE STRING,
LOKKT TYPE STRING,
ALTKT TYPE STRING,
PRCTR TYPE STRING,
BUPLA TYPE STRING,
H_MONAT TYPE STRING,
H_BLART TYPE STRING,
H_BUDAT TYPE STRING,
H_BLDAT TYPE STRING,
H_HWAER TYPE STRING,
ZBD1P TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTAXRECON01_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_PTAXRECON01_STR-MANDT sy-vline 
WA_PTAXRECON01_STR-BUKRS sy-vline 
WA_PTAXRECON01_STR-BELNR sy-vline 
WA_PTAXRECON01_STR-MWSKZ sy-vline 
WA_PTAXRECON01_STR-TAX_COUNTRY sy-vline 
WA_PTAXRECON01_STR-TXDAT_FROM sy-vline 
WA_PTAXRECON01_STR-GJAHR sy-vline 
WA_PTAXRECON01_STR-BUZEI sy-vline 
WA_PTAXRECON01_STR-KTOSL sy-vline 
WA_PTAXRECON01_STR-DMBTR sy-vline 
WA_PTAXRECON01_STR-TXBHW sy-vline 
WA_PTAXRECON01_STR-HWBAS sy-vline 
WA_PTAXRECON01_STR-CALCULATED sy-vline 
WA_PTAXRECON01_STR-SUBTOTAL sy-vline 
WA_PTAXRECON01_STR-POSTED sy-vline 
WA_PTAXRECON01_STR-HWSTE sy-vline 
WA_PTAXRECON01_STR-KBETR sy-vline 
WA_PTAXRECON01_STR-HKONT sy-vline 
WA_PTAXRECON01_STR-LOKKT sy-vline 
WA_PTAXRECON01_STR-ALTKT sy-vline 
WA_PTAXRECON01_STR-PRCTR sy-vline 
WA_PTAXRECON01_STR-BUPLA sy-vline 
WA_PTAXRECON01_STR-H_MONAT sy-vline 
WA_PTAXRECON01_STR-H_BLART sy-vline 
WA_PTAXRECON01_STR-H_BUDAT sy-vline 
WA_PTAXRECON01_STR-H_BLDAT sy-vline 
WA_PTAXRECON01_STR-H_HWAER sy-vline 
WA_PTAXRECON01_STR-ZBD1P sy-vline      INTO ld_text SEPARATED BY SPACE.

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