ABAP Select data from SAP table PKZVATRETINDOC into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP PKZVATRETINDOC 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 PKZVATRETINDOC. 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 PKZVATRETINDOC 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_PKZVATRETINDOC TYPE STANDARD TABLE OF PKZVATRETINDOC,
      WA_PKZVATRETINDOC TYPE PKZVATRETINDOC,
      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: <PKZVATRETINDOC> TYPE PKZVATRETINDOC.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM PKZVATRETINDOC
*  INTO TABLE @DATA(IT_PKZVATRETINDOC2).
*--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_PKZVATRETINDOC INDEX 1 INTO DATA(WA_PKZVATRETINDOC2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_PKZVATRETINDOC-TAXRATE, sy-vline,
  WA_PKZVATRETINDOC-AMOUNTSIGN, sy-vline,
  WA_PKZVATRETINDOC-NEGATIVESIGN, sy-vline,
  WA_PKZVATRETINDOC-AMOUNTINCOMPANYCODECURRENCY, sy-vline,
  WA_PKZVATRETINDOC-TAXBASEAMOUNTINCOCODECRCY, sy-vline,
  WA_PKZVATRETINDOC-TAXAMOUNTINCOCODECRCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_PKZVATRETINDOC 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_PKZVATRETINDOC 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_PKZVATRETINDOC INTO WA_PKZVATRETINDOC.


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

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

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

*Conversion exit MATN1, internal->external for field MATERIAL
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_PKZVATRETINDOC-MATERIAL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKZVATRETINDOC-MATERIAL.
WRITE:/ 'New Value:', ld_input.

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

*Conversion exit CUNIT, internal->external for field QUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PKZVATRETINDOC-QUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKZVATRETINDOC-QUANTITYUNIT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ANALYTICQUANTITYUNIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_PKZVATRETINDOC-ANALYTICQUANTITYUNIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_PKZVATRETINDOC-ANALYTICQUANTITYUNIT.
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_PKZVATRETINDOC_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
TAXCODE TYPE STRING,
TAXRATE TYPE STRING,
AMOUNTSIGN TYPE STRING,
NEGATIVESIGN TYPE STRING,
AMOUNTINCOMPANYCODECURRENCY TYPE STRING,
TAXBASEAMOUNTINCOCODECRCY TYPE STRING,
TAXAMOUNTINCOCODECRCY TYPE STRING,
TAXBASEAMOUNTINCOCODECRCYABS TYPE STRING,
AMOUNTINCOMPANYCODECURRENCYABS TYPE STRING,
TAXBASEAMOUNTINCOCODECRCYTOT TYPE STRING,
TAXAMOUNTINCOCODECRCYTOT TYPE STRING,
TRANSACTIONTYPEDETERMINATION TYPE STRING,
POSTINGDATE TYPE STRING,
TAXREPORTINGDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
ACCOUNTINGDOCUMENTTYPE TYPE STRING,
ISREVERSAL TYPE STRING,
ISREVERSED TYPE STRING,
ORIGINALREFERENCEDOCUMENT TYPE STRING,
REFERENCEDOCUMENTTYPE TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
BUSINESSTRANSACTIONTYPE TYPE STRING,
SENDERLOGICALSYSTEM TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
CURRENCY TYPE STRING,
STATRYRPTGENTITY TYPE STRING,
STATRYRPTCATEGORY TYPE STRING,
STATRYRPTRUNID TYPE STRING,
ACCOUNTINGDOCUMENTITEM TYPE STRING,
KZ_VATRETURNSECTIONTYPE TYPE STRING,
MATERIAL TYPE STRING,
PURCHASINGDOCUMENT TYPE STRING,
PURCHASINGDOCUMENTITEM TYPE STRING,
INVOICENUMBER TYPE STRING,
QUANTITYUNIT TYPE STRING,
QUANTITY TYPE STRING,
MATERIALNAME TYPE STRING,
ACTIVITY TYPE STRING,
KZ_MATERIALSUBGROUP TYPE STRING,
ANALYTICQUANTITYUNIT TYPE STRING,
ANALYTICQUANTITY TYPE STRING,
ANALYTICMATERIALNAME TYPE STRING,END OF T_EKKO_STR.
DATA: WA_PKZVATRETINDOC_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_PKZVATRETINDOC_STR-MANDT sy-vline 
WA_PKZVATRETINDOC_STR-COMPANYCODE sy-vline 
WA_PKZVATRETINDOC_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_PKZVATRETINDOC_STR-FISCALYEAR sy-vline 
WA_PKZVATRETINDOC_STR-TAXCODE sy-vline 
WA_PKZVATRETINDOC_STR-TAXRATE sy-vline 
WA_PKZVATRETINDOC_STR-AMOUNTSIGN sy-vline 
WA_PKZVATRETINDOC_STR-NEGATIVESIGN sy-vline 
WA_PKZVATRETINDOC_STR-AMOUNTINCOMPANYCODECURRENCY sy-vline 
WA_PKZVATRETINDOC_STR-TAXBASEAMOUNTINCOCODECRCY sy-vline 
WA_PKZVATRETINDOC_STR-TAXAMOUNTINCOCODECRCY sy-vline 
WA_PKZVATRETINDOC_STR-TAXBASEAMOUNTINCOCODECRCYABS sy-vline 
WA_PKZVATRETINDOC_STR-AMOUNTINCOMPANYCODECURRENCYABS sy-vline 
WA_PKZVATRETINDOC_STR-TAXBASEAMOUNTINCOCODECRCYTOT sy-vline 
WA_PKZVATRETINDOC_STR-TAXAMOUNTINCOCODECRCYTOT sy-vline 
WA_PKZVATRETINDOC_STR-TRANSACTIONTYPEDETERMINATION sy-vline 
WA_PKZVATRETINDOC_STR-POSTINGDATE sy-vline 
WA_PKZVATRETINDOC_STR-TAXREPORTINGDATE sy-vline 
WA_PKZVATRETINDOC_STR-DOCUMENTDATE sy-vline 
WA_PKZVATRETINDOC_STR-ACCOUNTINGDOCUMENTTYPE sy-vline 
WA_PKZVATRETINDOC_STR-ISREVERSAL sy-vline 
WA_PKZVATRETINDOC_STR-ISREVERSED sy-vline 
WA_PKZVATRETINDOC_STR-ORIGINALREFERENCEDOCUMENT sy-vline 
WA_PKZVATRETINDOC_STR-REFERENCEDOCUMENTTYPE sy-vline 
WA_PKZVATRETINDOC_STR-DOCUMENTREFERENCEID sy-vline 
WA_PKZVATRETINDOC_STR-BUSINESSTRANSACTIONTYPE sy-vline 
WA_PKZVATRETINDOC_STR-SENDERLOGICALSYSTEM sy-vline 
WA_PKZVATRETINDOC_STR-COMPANYCODECURRENCY sy-vline 
WA_PKZVATRETINDOC_STR-CURRENCY sy-vline 
WA_PKZVATRETINDOC_STR-STATRYRPTGENTITY sy-vline 
WA_PKZVATRETINDOC_STR-STATRYRPTCATEGORY sy-vline 
WA_PKZVATRETINDOC_STR-STATRYRPTRUNID sy-vline 
WA_PKZVATRETINDOC_STR-ACCOUNTINGDOCUMENTITEM sy-vline 
WA_PKZVATRETINDOC_STR-KZ_VATRETURNSECTIONTYPE sy-vline 
WA_PKZVATRETINDOC_STR-MATERIAL sy-vline 
WA_PKZVATRETINDOC_STR-PURCHASINGDOCUMENT sy-vline 
WA_PKZVATRETINDOC_STR-PURCHASINGDOCUMENTITEM sy-vline 
WA_PKZVATRETINDOC_STR-INVOICENUMBER sy-vline 
WA_PKZVATRETINDOC_STR-QUANTITYUNIT sy-vline 
WA_PKZVATRETINDOC_STR-QUANTITY sy-vline 
WA_PKZVATRETINDOC_STR-MATERIALNAME sy-vline 
WA_PKZVATRETINDOC_STR-ACTIVITY sy-vline 
WA_PKZVATRETINDOC_STR-KZ_MATERIALSUBGROUP sy-vline 
WA_PKZVATRETINDOC_STR-ANALYTICQUANTITYUNIT sy-vline 
WA_PKZVATRETINDOC_STR-ANALYTICQUANTITY sy-vline 
WA_PKZVATRETINDOC_STR-ANALYTICMATERIALNAME sy-vline      INTO ld_text SEPARATED BY SPACE.

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