ABAP Select data from SAP table PZASRTAXRETITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PZASRTAXRETITEM
*  INTO TABLE @DATA(IT_PZASRTAXRETITEM2).
*--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_PZASRTAXRETITEM INDEX 1 INTO DATA(WA_PZASRTAXRETITEM2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PZASRTAXRETITEM-TAXCODE, sy-vline,
  WA_PZASRTAXRETITEM-TRANSACTIONTYPEDETERMINATION, sy-vline,
  WA_PZASRTAXRETITEM-TAXBOX, sy-vline,
  WA_PZASRTAXRETITEM-COUNTRY, sy-vline,
  WA_PZASRTAXRETITEM-TAXITEMGROUPINGVERSION, sy-vline,
  WA_PZASRTAXRETITEM-VALIDFROM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PZASRTAXRETITEM 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_PZASRTAXRETITEM 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_PZASRTAXRETITEM INTO WA_PZASRTAXRETITEM.


*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_PZASRTAXRETITEM-ACCOUNTINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PZASRTAXRETITEM-ACCOUNTINGDOCUMENT.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit AC172, internal->external for field TAXBASEAMOUNTINRPTGCRCY
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_PZASRTAXRETITEM-TAXBASEAMOUNTINRPTGCRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PZASRTAXRETITEM-TAXBASEAMOUNTINRPTGCRCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field TAXAMOUNTINRPTGCRCY
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_PZASRTAXRETITEM-TAXAMOUNTINRPTGCRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PZASRTAXRETITEM-TAXAMOUNTINRPTGCRCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field BUSINESSPARTNER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_PZASRTAXRETITEM-BUSINESSPARTNER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PZASRTAXRETITEM-BUSINESSPARTNER.
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_PZASRTAXRETITEM_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
TAXITEM TYPE STRING,
TAXCODE TYPE STRING,
TRANSACTIONTYPEDETERMINATION TYPE STRING,
TAXBOX TYPE STRING,
COUNTRY TYPE STRING,
TAXITEMGROUPINGVERSION TYPE STRING,
VALIDFROM TYPE STRING,
TAXBOXSTRUCTURETYPE TYPE STRING,
STATRYRPTGENTITY TYPE STRING,
STATRYRPTCATEGORY TYPE STRING,
STATRYRPTRUNID TYPE STRING,
TAXGROUP TYPE STRING,
TAXBOXSTRUCTURE TYPE STRING,
VALIDTO TYPE STRING,
DEBITCREDITCODE TYPE STRING,
TAXCALCULATIONPROCEDURE TYPE STRING,
TAXRATE TYPE STRING,
TAXTYPE TYPE STRING,
TAXRATEVALIDITYSTARTDATE TYPE STRING,
TAXBASEAMOUNTINRPTGCRCY TYPE STRING,
TAXAMOUNTINRPTGCRCY TYPE STRING,
TOTALGROSSAMOUNTINRPTGCRCY TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
REPORTINGCURRENCY TYPE STRING,
ACCOUNTINGDOCUMENTTYPE TYPE STRING,
REFERENCEDOCUMENTTYPE TYPE STRING,
ALTERNATIVEREFERENCEDOCUMENT TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
ACCOUNTINGDOCUMENTHEADERTEXT TYPE STRING,
POSTINGDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
TAXREPORTINGDATE TYPE STRING,
REPORTINGDATE TYPE STRING,
FISCALPERIOD TYPE STRING,
COMPANYCODECOUNTRY TYPE STRING,
REPORTINGCOUNTRY TYPE STRING,
TAXRETURNCOUNTRY TYPE STRING,
BUSINESSPARTNER TYPE STRING,
BUSINESSPARTNERNAME TYPE STRING,
TAXNUMBER1 TYPE STRING,
TAXNUMBER2 TYPE STRING,
TAXBOXSTRUCTURENAME TYPE STRING,
TAXBOXNAME TYPE STRING,
TAXBOXCONDITION TYPE STRING,
TAXCODENAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PZASRTAXRETITEM_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_PZASRTAXRETITEM_STR-MANDT sy-vline 
WA_PZASRTAXRETITEM_STR-COMPANYCODE sy-vline 
WA_PZASRTAXRETITEM_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_PZASRTAXRETITEM_STR-FISCALYEAR sy-vline 
WA_PZASRTAXRETITEM_STR-TAXITEM sy-vline 
WA_PZASRTAXRETITEM_STR-TAXCODE sy-vline 
WA_PZASRTAXRETITEM_STR-TRANSACTIONTYPEDETERMINATION sy-vline 
WA_PZASRTAXRETITEM_STR-TAXBOX sy-vline 
WA_PZASRTAXRETITEM_STR-COUNTRY sy-vline 
WA_PZASRTAXRETITEM_STR-TAXITEMGROUPINGVERSION sy-vline 
WA_PZASRTAXRETITEM_STR-VALIDFROM sy-vline 
WA_PZASRTAXRETITEM_STR-TAXBOXSTRUCTURETYPE sy-vline 
WA_PZASRTAXRETITEM_STR-STATRYRPTGENTITY sy-vline 
WA_PZASRTAXRETITEM_STR-STATRYRPTCATEGORY sy-vline 
WA_PZASRTAXRETITEM_STR-STATRYRPTRUNID sy-vline 
WA_PZASRTAXRETITEM_STR-TAXGROUP sy-vline 
WA_PZASRTAXRETITEM_STR-TAXBOXSTRUCTURE sy-vline 
WA_PZASRTAXRETITEM_STR-VALIDTO sy-vline 
WA_PZASRTAXRETITEM_STR-DEBITCREDITCODE sy-vline 
WA_PZASRTAXRETITEM_STR-TAXCALCULATIONPROCEDURE sy-vline 
WA_PZASRTAXRETITEM_STR-TAXRATE sy-vline 
WA_PZASRTAXRETITEM_STR-TAXTYPE sy-vline 
WA_PZASRTAXRETITEM_STR-TAXRATEVALIDITYSTARTDATE sy-vline 
WA_PZASRTAXRETITEM_STR-TAXBASEAMOUNTINRPTGCRCY sy-vline 
WA_PZASRTAXRETITEM_STR-TAXAMOUNTINRPTGCRCY sy-vline 
WA_PZASRTAXRETITEM_STR-TOTALGROSSAMOUNTINRPTGCRCY sy-vline 
WA_PZASRTAXRETITEM_STR-DOCUMENTCURRENCY sy-vline 
WA_PZASRTAXRETITEM_STR-REPORTINGCURRENCY sy-vline 
WA_PZASRTAXRETITEM_STR-ACCOUNTINGDOCUMENTTYPE sy-vline 
WA_PZASRTAXRETITEM_STR-REFERENCEDOCUMENTTYPE sy-vline 
WA_PZASRTAXRETITEM_STR-ALTERNATIVEREFERENCEDOCUMENT sy-vline 
WA_PZASRTAXRETITEM_STR-DOCUMENTREFERENCEID sy-vline 
WA_PZASRTAXRETITEM_STR-ACCOUNTINGDOCUMENTHEADERTEXT sy-vline 
WA_PZASRTAXRETITEM_STR-POSTINGDATE sy-vline 
WA_PZASRTAXRETITEM_STR-DOCUMENTDATE sy-vline 
WA_PZASRTAXRETITEM_STR-TAXREPORTINGDATE sy-vline 
WA_PZASRTAXRETITEM_STR-REPORTINGDATE sy-vline 
WA_PZASRTAXRETITEM_STR-FISCALPERIOD sy-vline 
WA_PZASRTAXRETITEM_STR-COMPANYCODECOUNTRY sy-vline 
WA_PZASRTAXRETITEM_STR-REPORTINGCOUNTRY sy-vline 
WA_PZASRTAXRETITEM_STR-TAXRETURNCOUNTRY sy-vline 
WA_PZASRTAXRETITEM_STR-BUSINESSPARTNER sy-vline 
WA_PZASRTAXRETITEM_STR-BUSINESSPARTNERNAME sy-vline 
WA_PZASRTAXRETITEM_STR-TAXNUMBER1 sy-vline 
WA_PZASRTAXRETITEM_STR-TAXNUMBER2 sy-vline 
WA_PZASRTAXRETITEM_STR-TAXBOXSTRUCTURENAME sy-vline 
WA_PZASRTAXRETITEM_STR-TAXBOXNAME sy-vline 
WA_PZASRTAXRETITEM_STR-TAXBOXCONDITION sy-vline 
WA_PZASRTAXRETITEM_STR-TAXCODENAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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