ABAP Select data from SAP table PTAXITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PTAXITEM
*  INTO TABLE @DATA(IT_PTAXITEM2).
*--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_PTAXITEM INDEX 1 INTO DATA(WA_PTAXITEM2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<PTAXITEM>-MANDT = 1.
<PTAXITEM>-COMPANYCODE = 1.
<PTAXITEM>-ACCOUNTINGDOCUMENT = 1.
<PTAXITEM>-FISCALYEAR = 1.
<PTAXITEM>-TAXLINEITEMNUMBER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PTAXITEM-TAXCOUNTRY, sy-vline,
  WA_PTAXITEM-TRANSACTIONALTAXATIONTYPE, sy-vline,
  WA_PTAXITEM-DESTINATIONCOUNTRY, sy-vline,
  WA_PTAXITEM-SUPPLYINGCOUNTRY, sy-vline,
  WA_PTAXITEM-SOURCEREFERENCEDOCUMENTTYPE, sy-vline,
  WA_PTAXITEM-SOURCELOGICALSYSTEM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PTAXITEM 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_PTAXITEM 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_PTAXITEM INTO WA_PTAXITEM.


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

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

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

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

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

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

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

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

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

*Conversion exit GJAHR, internal->external for field TAXPAYABLEDOCUMENTFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_PTAXITEM-TAXPAYABLEDOCUMENTFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PTAXITEM-TAXPAYABLEDOCUMENTFISCALYEAR.
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_PTAXITEM_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
TAXLINEITEMNUMBER TYPE STRING,
TAXCOUNTRY TYPE STRING,
TRANSACTIONALTAXATIONTYPE TYPE STRING,
DESTINATIONCOUNTRY TYPE STRING,
SUPPLYINGCOUNTRY TYPE STRING,
SOURCEREFERENCEDOCUMENTTYPE TYPE STRING,
SOURCELOGICALSYSTEM TYPE STRING,
SOURCEREFERENCEDOCUMENTCNTXT TYPE STRING,
SUCCESSORREFERENCEDOCUMENT TYPE STRING,
SOURCEREFERENCEDOCUMENTITEM TYPE STRING,
TRANSACTIONTYPEDETERMINATION TYPE STRING,
ACCOUNTINGDOCUMENTTYPE TYPE STRING,
DEBITCREDITCODE TYPE STRING,
TAXDUECATEGORY TYPE STRING,
ACCOUNTINGDOCUMENTITEM TYPE STRING,
GLACCOUNT TYPE STRING,
CONDITIONTYPE TYPE STRING,
TAXRATEINPERCENT TYPE STRING,
POSTINGDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
TAXFULFILLMENTDATE TYPE STRING,
TAXREPORTINGDATE TYPE STRING,
TAXRATEVALIDITYSTARTDATE TYPE STRING,
SUPPLIER TYPE STRING,
CUSTOMER TYPE STRING,
TAXITEMGROUP TYPE STRING,
TAXITEMACCTGDOCITEMREF TYPE STRING,
TAXLINEITEMSTATUS TYPE STRING,
TAXEXEMPTIONRATEINPERCENT TYPE STRING,
TAXEXEMPTIONREASON TYPE STRING,
TAXEXEMPTIONNUMBER TYPE STRING,
TAXEXCHANGERATE TYPE STRING,
EXCHANGERATETYPE TYPE STRING,
TAXREPORTINGCURRENCYCNVRSNDATE TYPE STRING,
ISREVERSAL TYPE STRING,
ISREVERSED TYPE STRING,
CLEARINGDOCUMENTNUMBER TYPE STRING,
CLEARINGDATE TYPE STRING,
CLEARINGDOCFISCALYEAR TYPE STRING,
TAXPAYABLEDOCUMENT TYPE STRING,
TAXPAYABLEDOCUMENTFISCALYEAR TYPE STRING,
TAXPAYABLEDOCUMENTITEM TYPE STRING,
TAXBASEAMOUNTINCOCODECRCY TYPE STRING,
TAXAMOUNTINCOCODECRCY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
TAXBASEAMOUNTINTRANSCRCY TYPE STRING,
TAXAMOUNTINTRANSCRCY TYPE STRING,
TRANSACTIONCURRENCY TYPE STRING,
TAXBASEAMOUNTINRPTGCRCY TYPE STRING,
TAXAMOUNTINRPTGCRCY TYPE STRING,
REPORTINGCURRENCY TYPE STRING,
BUSINESSPARTNERTAXNUMBER TYPE STRING,
TAXENTITYTYPE TYPE STRING,
ADDITIONALTAXREPORTINGENTITY TYPE STRING,
TAXCODE TYPE STRING,
TAXISNOTDEDUCTIBLE TYPE STRING,
TAXTYPE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PTAXITEM_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_PTAXITEM_STR-MANDT sy-vline 
WA_PTAXITEM_STR-COMPANYCODE sy-vline 
WA_PTAXITEM_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_PTAXITEM_STR-FISCALYEAR sy-vline 
WA_PTAXITEM_STR-TAXLINEITEMNUMBER sy-vline 
WA_PTAXITEM_STR-TAXCOUNTRY sy-vline 
WA_PTAXITEM_STR-TRANSACTIONALTAXATIONTYPE sy-vline 
WA_PTAXITEM_STR-DESTINATIONCOUNTRY sy-vline 
WA_PTAXITEM_STR-SUPPLYINGCOUNTRY sy-vline 
WA_PTAXITEM_STR-SOURCEREFERENCEDOCUMENTTYPE sy-vline 
WA_PTAXITEM_STR-SOURCELOGICALSYSTEM sy-vline 
WA_PTAXITEM_STR-SOURCEREFERENCEDOCUMENTCNTXT sy-vline 
WA_PTAXITEM_STR-SUCCESSORREFERENCEDOCUMENT sy-vline 
WA_PTAXITEM_STR-SOURCEREFERENCEDOCUMENTITEM sy-vline 
WA_PTAXITEM_STR-TRANSACTIONTYPEDETERMINATION sy-vline 
WA_PTAXITEM_STR-ACCOUNTINGDOCUMENTTYPE sy-vline 
WA_PTAXITEM_STR-DEBITCREDITCODE sy-vline 
WA_PTAXITEM_STR-TAXDUECATEGORY sy-vline 
WA_PTAXITEM_STR-ACCOUNTINGDOCUMENTITEM sy-vline 
WA_PTAXITEM_STR-GLACCOUNT sy-vline 
WA_PTAXITEM_STR-CONDITIONTYPE sy-vline 
WA_PTAXITEM_STR-TAXRATEINPERCENT sy-vline 
WA_PTAXITEM_STR-POSTINGDATE sy-vline 
WA_PTAXITEM_STR-DOCUMENTDATE sy-vline 
WA_PTAXITEM_STR-TAXFULFILLMENTDATE sy-vline 
WA_PTAXITEM_STR-TAXREPORTINGDATE sy-vline 
WA_PTAXITEM_STR-TAXRATEVALIDITYSTARTDATE sy-vline 
WA_PTAXITEM_STR-SUPPLIER sy-vline 
WA_PTAXITEM_STR-CUSTOMER sy-vline 
WA_PTAXITEM_STR-TAXITEMGROUP sy-vline 
WA_PTAXITEM_STR-TAXITEMACCTGDOCITEMREF sy-vline 
WA_PTAXITEM_STR-TAXLINEITEMSTATUS sy-vline 
WA_PTAXITEM_STR-TAXEXEMPTIONRATEINPERCENT sy-vline 
WA_PTAXITEM_STR-TAXEXEMPTIONREASON sy-vline 
WA_PTAXITEM_STR-TAXEXEMPTIONNUMBER sy-vline 
WA_PTAXITEM_STR-TAXEXCHANGERATE sy-vline 
WA_PTAXITEM_STR-EXCHANGERATETYPE sy-vline 
WA_PTAXITEM_STR-TAXREPORTINGCURRENCYCNVRSNDATE sy-vline 
WA_PTAXITEM_STR-ISREVERSAL sy-vline 
WA_PTAXITEM_STR-ISREVERSED sy-vline 
WA_PTAXITEM_STR-CLEARINGDOCUMENTNUMBER sy-vline 
WA_PTAXITEM_STR-CLEARINGDATE sy-vline 
WA_PTAXITEM_STR-CLEARINGDOCFISCALYEAR sy-vline 
WA_PTAXITEM_STR-TAXPAYABLEDOCUMENT sy-vline 
WA_PTAXITEM_STR-TAXPAYABLEDOCUMENTFISCALYEAR sy-vline 
WA_PTAXITEM_STR-TAXPAYABLEDOCUMENTITEM sy-vline 
WA_PTAXITEM_STR-TAXBASEAMOUNTINCOCODECRCY sy-vline 
WA_PTAXITEM_STR-TAXAMOUNTINCOCODECRCY sy-vline 
WA_PTAXITEM_STR-COMPANYCODECURRENCY sy-vline 
WA_PTAXITEM_STR-TAXBASEAMOUNTINTRANSCRCY sy-vline 
WA_PTAXITEM_STR-TAXAMOUNTINTRANSCRCY sy-vline 
WA_PTAXITEM_STR-TRANSACTIONCURRENCY sy-vline 
WA_PTAXITEM_STR-TAXBASEAMOUNTINRPTGCRCY sy-vline 
WA_PTAXITEM_STR-TAXAMOUNTINRPTGCRCY sy-vline 
WA_PTAXITEM_STR-REPORTINGCURRENCY sy-vline 
WA_PTAXITEM_STR-BUSINESSPARTNERTAXNUMBER sy-vline 
WA_PTAXITEM_STR-TAXENTITYTYPE sy-vline 
WA_PTAXITEM_STR-ADDITIONALTAXREPORTINGENTITY sy-vline 
WA_PTAXITEM_STR-TAXCODE sy-vline 
WA_PTAXITEM_STR-TAXISNOTDEDUCTIBLE sy-vline 
WA_PTAXITEM_STR-TAXTYPE sy-vline      INTO ld_text SEPARATED BY SPACE.

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