ABAP Select data from SAP table ISRZATAXITEMC into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ISRZATAXITEMC
*  INTO TABLE @DATA(IT_ISRZATAXITEMC2).
*--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_ISRZATAXITEMC INDEX 1 INTO DATA(WA_ISRZATAXITEMC2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ISRZATAXITEMC-TAXCODE, sy-vline,
  WA_ISRZATAXITEMC-TAXITEM, sy-vline,
  WA_ISRZATAXITEMC-TAXBOX, sy-vline,
  WA_ISRZATAXITEMC-TAXDECLNAMOUNTTYPE, sy-vline,
  WA_ISRZATAXITEMC-TAXITEMGROUPINGVERSION, sy-vline,
  WA_ISRZATAXITEMC-ACCOUNTINGDOCUMENTTYPE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ISRZATAXITEMC 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_ISRZATAXITEMC 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_ISRZATAXITEMC INTO WA_ISRZATAXITEMC.


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

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

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

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

*Conversion exit ALPHA, internal->external for field SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_ISRZATAXITEMC-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ISRZATAXITEMC-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_ISRZATAXITEMC_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
TRANSACTIONTYPEDETERMINATION TYPE STRING,
TAXCODE TYPE STRING,
TAXITEM TYPE STRING,
TAXBOX TYPE STRING,
TAXDECLNAMOUNTTYPE TYPE STRING,
TAXITEMGROUPINGVERSION TYPE STRING,
ACCOUNTINGDOCUMENTTYPE TYPE STRING,
DOCUMENTDATE TYPE STRING,
POSTINGDATE TYPE STRING,
REPORTINGDATE TYPE STRING,
VATREGISTRATION TYPE STRING,
FINANCIALACCOUNTTYPE TYPE STRING,
TAXTYPE TYPE STRING,
NUMBEROFDOCUMENTS TYPE STRING,
CASHDISCOUNTISDEDUCTIBLE TYPE STRING,
TAXCALCULATIONPROCEDURE TYPE STRING,
CUSTOMERSUPPLIERVATREGN TYPE STRING,
DOCUMENTREFERENCEID TYPE STRING,
TAXRATE TYPE STRING,
TAXBASEAMOUNTINCOCODECRCY TYPE STRING,
TAXAMOUNTINCOCODECRCY TYPE STRING,
RECORDTYPE TYPE STRING,
REPORTINGCOUNTRY TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
DOCUMENTCURRENCY TYPE STRING,
REFERENCEDOCUMENTTYPE TYPE STRING,
COUNTRY TYPE STRING,
REVERSALREASON TYPE STRING,
BUSINESSPARTNERCOUNTRY TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,
BUSINESSPARTNERNAME TYPE STRING,
REFERENCE1IDBYBUSINESSPARTNER TYPE STRING,
REFERENCE2IDBYBUSINESSPARTNER TYPE STRING,
REFERENCE3IDBYBUSINESSPARTNER TYPE STRING,
CUSTOMER TYPE STRING,
SUPPLIER TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ISRZATAXITEMC_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_ISRZATAXITEMC_STR-MANDT sy-vline 
WA_ISRZATAXITEMC_STR-COMPANYCODE sy-vline 
WA_ISRZATAXITEMC_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_ISRZATAXITEMC_STR-FISCALYEAR sy-vline 
WA_ISRZATAXITEMC_STR-TRANSACTIONTYPEDETERMINATION sy-vline 
WA_ISRZATAXITEMC_STR-TAXCODE sy-vline 
WA_ISRZATAXITEMC_STR-TAXITEM sy-vline 
WA_ISRZATAXITEMC_STR-TAXBOX sy-vline 
WA_ISRZATAXITEMC_STR-TAXDECLNAMOUNTTYPE sy-vline 
WA_ISRZATAXITEMC_STR-TAXITEMGROUPINGVERSION sy-vline 
WA_ISRZATAXITEMC_STR-ACCOUNTINGDOCUMENTTYPE sy-vline 
WA_ISRZATAXITEMC_STR-DOCUMENTDATE sy-vline 
WA_ISRZATAXITEMC_STR-POSTINGDATE sy-vline 
WA_ISRZATAXITEMC_STR-REPORTINGDATE sy-vline 
WA_ISRZATAXITEMC_STR-VATREGISTRATION sy-vline 
WA_ISRZATAXITEMC_STR-FINANCIALACCOUNTTYPE sy-vline 
WA_ISRZATAXITEMC_STR-TAXTYPE sy-vline 
WA_ISRZATAXITEMC_STR-NUMBEROFDOCUMENTS sy-vline 
WA_ISRZATAXITEMC_STR-CASHDISCOUNTISDEDUCTIBLE sy-vline 
WA_ISRZATAXITEMC_STR-TAXCALCULATIONPROCEDURE sy-vline 
WA_ISRZATAXITEMC_STR-CUSTOMERSUPPLIERVATREGN sy-vline 
WA_ISRZATAXITEMC_STR-DOCUMENTREFERENCEID sy-vline 
WA_ISRZATAXITEMC_STR-TAXRATE sy-vline 
WA_ISRZATAXITEMC_STR-TAXBASEAMOUNTINCOCODECRCY sy-vline 
WA_ISRZATAXITEMC_STR-TAXAMOUNTINCOCODECRCY sy-vline 
WA_ISRZATAXITEMC_STR-RECORDTYPE sy-vline 
WA_ISRZATAXITEMC_STR-REPORTINGCOUNTRY sy-vline 
WA_ISRZATAXITEMC_STR-COMPANYCODECURRENCY sy-vline 
WA_ISRZATAXITEMC_STR-DOCUMENTCURRENCY sy-vline 
WA_ISRZATAXITEMC_STR-REFERENCEDOCUMENTTYPE sy-vline 
WA_ISRZATAXITEMC_STR-COUNTRY sy-vline 
WA_ISRZATAXITEMC_STR-REVERSALREASON sy-vline 
WA_ISRZATAXITEMC_STR-BUSINESSPARTNERCOUNTRY sy-vline 
WA_ISRZATAXITEMC_STR-AUTHORIZATIONGROUP sy-vline 
WA_ISRZATAXITEMC_STR-BUSINESSPARTNERNAME sy-vline 
WA_ISRZATAXITEMC_STR-REFERENCE1IDBYBUSINESSPARTNER sy-vline 
WA_ISRZATAXITEMC_STR-REFERENCE2IDBYBUSINESSPARTNER sy-vline 
WA_ISRZATAXITEMC_STR-REFERENCE3IDBYBUSINESSPARTNER sy-vline 
WA_ISRZATAXITEMC_STR-CUSTOMER sy-vline 
WA_ISRZATAXITEMC_STR-SUPPLIER sy-vline      INTO ld_text SEPARATED BY SPACE.

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