ABAP Select data from SAP table CKZVATRETININVC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CKZVATRETININVC
*  INTO TABLE @DATA(IT_CKZVATRETININVC2).
*--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_CKZVATRETININVC INDEX 1 INTO DATA(WA_CKZVATRETININVC2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CKZVATRETININVC-TAXBASEAMOUNTINCOCODECRCY, sy-vline,
  WA_CKZVATRETININVC-TAXAMOUNTINCOCODECRCY, sy-vline,
  WA_CKZVATRETININVC-TRANSACTIONTYPEDETERMINATION, sy-vline,
  WA_CKZVATRETININVC-POSTINGDATE, sy-vline,
  WA_CKZVATRETININVC-TAXREPORTINGDATE, sy-vline,
  WA_CKZVATRETININVC-DOCUMENTDATE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CKZVATRETININVC 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_CKZVATRETININVC 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_CKZVATRETININVC INTO WA_CKZVATRETININVC.


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

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

*Conversion exit AC152, internal->external for field TAXAMOUNTINCOCODECRCY
CALL FUNCTION 'CONVERSION_EXIT_AC152_OUTPUT'
  EXPORTING
    input =                      WA_CKZVATRETININVC-TAXAMOUNTINCOCODECRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKZVATRETININVC-TAXAMOUNTINCOCODECRCY.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

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

*Conversion exit ALPHA, internal->external for field SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CKZVATRETININVC-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CKZVATRETININVC-SUPPLIER.
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_CKZVATRETININVC_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
TAXCODE TYPE STRING,
TAXBASEAMOUNTINCOCODECRCY TYPE STRING,
TAXAMOUNTINCOCODECRCY 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,
CATEGORYFLAG TYPE STRING,
TAXNUMBER1 TYPE STRING,
TAXNUMBER3 TYPE STRING,
INVOICENUMBER TYPE STRING,
QUANTITYUNIT TYPE STRING,
QUANTITY TYPE STRING,
ACTIVITY TYPE STRING,
MATERIALNAME TYPE STRING,
MATERIAL TYPE STRING,
PURCHASINGDOCUMENT TYPE STRING,
PURCHASINGDOCUMENTITEM TYPE STRING,
CUSTOMER TYPE STRING,
SUPPLIER TYPE STRING,
DEBITCREDITCODE TYPE STRING,
BUSINESSPARTNERCONTRACT TYPE STRING,
KZ_MATERIALSUBGROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CKZVATRETININVC_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_CKZVATRETININVC_STR-MANDT sy-vline 
WA_CKZVATRETININVC_STR-COMPANYCODE sy-vline 
WA_CKZVATRETININVC_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_CKZVATRETININVC_STR-FISCALYEAR sy-vline 
WA_CKZVATRETININVC_STR-TAXCODE sy-vline 
WA_CKZVATRETININVC_STR-TAXBASEAMOUNTINCOCODECRCY sy-vline 
WA_CKZVATRETININVC_STR-TAXAMOUNTINCOCODECRCY sy-vline 
WA_CKZVATRETININVC_STR-TRANSACTIONTYPEDETERMINATION sy-vline 
WA_CKZVATRETININVC_STR-POSTINGDATE sy-vline 
WA_CKZVATRETININVC_STR-TAXREPORTINGDATE sy-vline 
WA_CKZVATRETININVC_STR-DOCUMENTDATE sy-vline 
WA_CKZVATRETININVC_STR-ACCOUNTINGDOCUMENTTYPE sy-vline 
WA_CKZVATRETININVC_STR-ISREVERSAL sy-vline 
WA_CKZVATRETININVC_STR-ISREVERSED sy-vline 
WA_CKZVATRETININVC_STR-ORIGINALREFERENCEDOCUMENT sy-vline 
WA_CKZVATRETININVC_STR-REFERENCEDOCUMENTTYPE sy-vline 
WA_CKZVATRETININVC_STR-DOCUMENTREFERENCEID sy-vline 
WA_CKZVATRETININVC_STR-BUSINESSTRANSACTIONTYPE sy-vline 
WA_CKZVATRETININVC_STR-SENDERLOGICALSYSTEM sy-vline 
WA_CKZVATRETININVC_STR-COMPANYCODECURRENCY sy-vline 
WA_CKZVATRETININVC_STR-CURRENCY sy-vline 
WA_CKZVATRETININVC_STR-STATRYRPTGENTITY sy-vline 
WA_CKZVATRETININVC_STR-STATRYRPTCATEGORY sy-vline 
WA_CKZVATRETININVC_STR-STATRYRPTRUNID sy-vline 
WA_CKZVATRETININVC_STR-ACCOUNTINGDOCUMENTITEM sy-vline 
WA_CKZVATRETININVC_STR-KZ_VATRETURNSECTIONTYPE sy-vline 
WA_CKZVATRETININVC_STR-CATEGORYFLAG sy-vline 
WA_CKZVATRETININVC_STR-TAXNUMBER1 sy-vline 
WA_CKZVATRETININVC_STR-TAXNUMBER3 sy-vline 
WA_CKZVATRETININVC_STR-INVOICENUMBER sy-vline 
WA_CKZVATRETININVC_STR-QUANTITYUNIT sy-vline 
WA_CKZVATRETININVC_STR-QUANTITY sy-vline 
WA_CKZVATRETININVC_STR-ACTIVITY sy-vline 
WA_CKZVATRETININVC_STR-MATERIALNAME sy-vline 
WA_CKZVATRETININVC_STR-MATERIAL sy-vline 
WA_CKZVATRETININVC_STR-PURCHASINGDOCUMENT sy-vline 
WA_CKZVATRETININVC_STR-PURCHASINGDOCUMENTITEM sy-vline 
WA_CKZVATRETININVC_STR-CUSTOMER sy-vline 
WA_CKZVATRETININVC_STR-SUPPLIER sy-vline 
WA_CKZVATRETININVC_STR-DEBITCREDITCODE sy-vline 
WA_CKZVATRETININVC_STR-BUSINESSPARTNERCONTRACT sy-vline 
WA_CKZVATRETININVC_STR-KZ_MATERIALSUBGROUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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