ABAP Select data from SAP table CSRTAXITEM into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CSRTAXITEM
*  INTO TABLE @DATA(IT_CSRTAXITEM2).
*--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_CSRTAXITEM INDEX 1 INTO DATA(WA_CSRTAXITEM2).


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

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

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CSRTAXITEM-POSTINGDATE, sy-vline,
  WA_CSRTAXITEM-DOCUMENTDATE, sy-vline,
  WA_CSRTAXITEM-TAXREPORTINGDATE, sy-vline,
  WA_CSRTAXITEM-TAXREPORTINGDOCUMENTDATE, sy-vline,
  WA_CSRTAXITEM-ACCOUNTINGDOCUMENTTYPE, sy-vline,
  WA_CSRTAXITEM-TRANSACTIONTYPEDETERMINATION, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CSRTAXITEM 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_CSRTAXITEM 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_CSRTAXITEM INTO WA_CSRTAXITEM.


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

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

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

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

*Conversion exit GJAHR, internal->external for field SENDERFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CSRTAXITEM-SENDERFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CSRTAXITEM-SENDERFISCALYEAR.
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_CSRTAXITEM_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
REPORTINGDATE TYPE STRING,
POSTINGDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
TAXREPORTINGDATE TYPE STRING,
TAXREPORTINGDOCUMENTDATE TYPE STRING,
ACCOUNTINGDOCUMENTTYPE TYPE STRING,
TRANSACTIONTYPEDETERMINATION TYPE STRING,
GLACCOUNT TYPE STRING,
BUSINESSPLACE TYPE STRING,
TAXJURISDICTION TYPE STRING,
LOWESTLEVELTAXJURISDICTION TYPE STRING,
TAXDECLNAMOUNTTYPE TYPE STRING,
REPORTINGCOUNTRY TYPE STRING,
TAXITEMGROUPINGVERSION TYPE STRING,
VALIDFROM TYPE STRING,
SENDERCOMPANYCODE TYPE STRING,
SENDERACCOUNTINGDOCUMENT TYPE STRING,
SENDERFISCALYEAR TYPE STRING,
STATRYRPTGENTITY TYPE STRING,
STATRYRPTCATEGORY TYPE STRING,
STATRYRPTRUNID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CSRTAXITEM_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_CSRTAXITEM_STR-MANDT sy-vline 
WA_CSRTAXITEM_STR-COMPANYCODE sy-vline 
WA_CSRTAXITEM_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_CSRTAXITEM_STR-FISCALYEAR sy-vline 
WA_CSRTAXITEM_STR-REPORTINGDATE sy-vline 
WA_CSRTAXITEM_STR-POSTINGDATE sy-vline 
WA_CSRTAXITEM_STR-DOCUMENTDATE sy-vline 
WA_CSRTAXITEM_STR-TAXREPORTINGDATE sy-vline 
WA_CSRTAXITEM_STR-TAXREPORTINGDOCUMENTDATE sy-vline 
WA_CSRTAXITEM_STR-ACCOUNTINGDOCUMENTTYPE sy-vline 
WA_CSRTAXITEM_STR-TRANSACTIONTYPEDETERMINATION sy-vline 
WA_CSRTAXITEM_STR-GLACCOUNT sy-vline 
WA_CSRTAXITEM_STR-BUSINESSPLACE sy-vline 
WA_CSRTAXITEM_STR-TAXJURISDICTION sy-vline 
WA_CSRTAXITEM_STR-LOWESTLEVELTAXJURISDICTION sy-vline 
WA_CSRTAXITEM_STR-TAXDECLNAMOUNTTYPE sy-vline 
WA_CSRTAXITEM_STR-REPORTINGCOUNTRY sy-vline 
WA_CSRTAXITEM_STR-TAXITEMGROUPINGVERSION sy-vline 
WA_CSRTAXITEM_STR-VALIDFROM sy-vline 
WA_CSRTAXITEM_STR-SENDERCOMPANYCODE sy-vline 
WA_CSRTAXITEM_STR-SENDERACCOUNTINGDOCUMENT sy-vline 
WA_CSRTAXITEM_STR-SENDERFISCALYEAR sy-vline 
WA_CSRTAXITEM_STR-STATRYRPTGENTITY sy-vline 
WA_CSRTAXITEM_STR-STATRYRPTCATEGORY sy-vline 
WA_CSRTAXITEM_STR-STATRYRPTRUNID sy-vline      INTO ld_text SEPARATED BY SPACE.

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