ABAP Select data from SAP table CRUVATRETS2IQ into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRUVATRETS2IQ 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 CRUVATRETS2IQ. 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 CRUVATRETS2IQ 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_CRUVATRETS2IQ TYPE STANDARD TABLE OF CRUVATRETS2IQ,
      WA_CRUVATRETS2IQ TYPE CRUVATRETS2IQ,
      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: <CRUVATRETS2IQ> TYPE CRUVATRETS2IQ.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CRUVATRETS2IQ.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CRUVATRETS2IQ
  INTO TABLE IT_CRUVATRETS2IQ.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRUVATRETS2IQ
*  INTO TABLE @DATA(IT_CRUVATRETS2IQ2).
*--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_CRUVATRETS2IQ INDEX 1 INTO DATA(WA_CRUVATRETS2IQ2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CRUVATRETS2IQ ASSIGNING <CRUVATRETS2IQ>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRUVATRETS2IQ>-MANDT = 1.
<CRUVATRETS2IQ>-SUPPLIER = 1.
<CRUVATRETS2IQ>-VATRETURNOPERATION = 1.
<CRUVATRETS2IQ>-TAXBOXBYTAXAUTHORITY = 1.
<CRUVATRETS2IQ>-VATRETURNITEMDESCRIPTION = 1.

ENDLOOP.

LOOP AT IT_CRUVATRETS2IQ INTO WA_CRUVATRETS2IQ.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRUVATRETS2IQ-TAXBASEAMOUNTINCOCODECRCY, sy-vline,
  WA_CRUVATRETS2IQ-COMPANYCODE, sy-vline,
  WA_CRUVATRETS2IQ-ACCOUNTINGDOCUMENT, sy-vline,
  WA_CRUVATRETS2IQ-FISCALYEAR, sy-vline,
  WA_CRUVATRETS2IQ-ISREVERSAL, sy-vline,
  WA_CRUVATRETS2IQ-ISREVERSED, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRUVATRETS2IQ 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_CRUVATRETS2IQ 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_CRUVATRETS2IQ INTO WA_CRUVATRETS2IQ.


*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 SUPPLIER
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRUVATRETS2IQ-SUPPLIER
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRUVATRETS2IQ-SUPPLIER.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field ACCOUNTINGDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRUVATRETS2IQ-ACCOUNTINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRUVATRETS2IQ-ACCOUNTINGDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CRUVATRETS2IQ-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRUVATRETS2IQ-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field SOURCEDOCUMENT
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CRUVATRETS2IQ-SOURCEDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRUVATRETS2IQ-SOURCEDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field SOURCEDOCUMENTFISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CRUVATRETS2IQ-SOURCEDOCUMENTFISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRUVATRETS2IQ-SOURCEDOCUMENTFISCALYEAR.
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_CRUVATRETS2IQ_STR, 
MANDT TYPE STRING,
SUPPLIER TYPE STRING,
VATRETURNOPERATION TYPE STRING,
TAXBOXBYTAXAUTHORITY TYPE STRING,
VATRETURNITEMDESCRIPTION TYPE STRING,
TAXBASEAMOUNTINCOCODECRCY TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
ISREVERSAL TYPE STRING,
ISREVERSED TYPE STRING,
SOURCEDOCUMENT TYPE STRING,
EXTERNALINVOICE TYPE STRING,
SOURCEDOCUMENTFISCALYEAR TYPE STRING,
POSTINGDATE TYPE STRING,
TAXREPORTINGDATE TYPE STRING,
DOCUMENTDATE TYPE STRING,
COMPANYCODECURRENCY TYPE STRING,
BUSINESSTRANSACTIONTYPE TYPE STRING,
ACCOUNTINGDOCUMENTTYPE TYPE STRING,
TAXCODE TYPE STRING,
RU_PARTNERORGANIZATIONINN TYPE STRING,
RU_PARTNERORGANIZATIONKPP TYPE STRING,
SUPPLIERNAME TYPE STRING,
RU_PARTNERPERSONINN TYPE STRING,
FIRSTNAME TYPE STRING,
LASTNAME TYPE STRING,
MIDDLENAME TYPE STRING,
RU_TERRITORYCLASSFCTNOKTMO TYPE STRING,
RU_VATRETURNVERSION TYPE STRING,
RU_VATRETURNSECTION TYPE STRING,
RU_VATRETURNSECTIONTYPE TYPE STRING,
RU_VATSUBSCENARIOVERSION TYPE STRING,
RU_VATSUBSCENARIO TYPE STRING,
RU_VATSCENARIO TYPE STRING,
STATRYRPTGENTITY TYPE STRING,
STATRYRPTCATEGORY TYPE STRING,
STATRYRPTRUNID TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRUVATRETS2IQ_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_CRUVATRETS2IQ_STR-MANDT sy-vline 
WA_CRUVATRETS2IQ_STR-SUPPLIER sy-vline 
WA_CRUVATRETS2IQ_STR-VATRETURNOPERATION sy-vline 
WA_CRUVATRETS2IQ_STR-TAXBOXBYTAXAUTHORITY sy-vline 
WA_CRUVATRETS2IQ_STR-VATRETURNITEMDESCRIPTION sy-vline 
WA_CRUVATRETS2IQ_STR-TAXBASEAMOUNTINCOCODECRCY sy-vline 
WA_CRUVATRETS2IQ_STR-COMPANYCODE sy-vline 
WA_CRUVATRETS2IQ_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_CRUVATRETS2IQ_STR-FISCALYEAR sy-vline 
WA_CRUVATRETS2IQ_STR-ISREVERSAL sy-vline 
WA_CRUVATRETS2IQ_STR-ISREVERSED sy-vline 
WA_CRUVATRETS2IQ_STR-SOURCEDOCUMENT sy-vline 
WA_CRUVATRETS2IQ_STR-EXTERNALINVOICE sy-vline 
WA_CRUVATRETS2IQ_STR-SOURCEDOCUMENTFISCALYEAR sy-vline 
WA_CRUVATRETS2IQ_STR-POSTINGDATE sy-vline 
WA_CRUVATRETS2IQ_STR-TAXREPORTINGDATE sy-vline 
WA_CRUVATRETS2IQ_STR-DOCUMENTDATE sy-vline 
WA_CRUVATRETS2IQ_STR-COMPANYCODECURRENCY sy-vline 
WA_CRUVATRETS2IQ_STR-BUSINESSTRANSACTIONTYPE sy-vline 
WA_CRUVATRETS2IQ_STR-ACCOUNTINGDOCUMENTTYPE sy-vline 
WA_CRUVATRETS2IQ_STR-TAXCODE sy-vline 
WA_CRUVATRETS2IQ_STR-RU_PARTNERORGANIZATIONINN sy-vline 
WA_CRUVATRETS2IQ_STR-RU_PARTNERORGANIZATIONKPP sy-vline 
WA_CRUVATRETS2IQ_STR-SUPPLIERNAME sy-vline 
WA_CRUVATRETS2IQ_STR-RU_PARTNERPERSONINN sy-vline 
WA_CRUVATRETS2IQ_STR-FIRSTNAME sy-vline 
WA_CRUVATRETS2IQ_STR-LASTNAME sy-vline 
WA_CRUVATRETS2IQ_STR-MIDDLENAME sy-vline 
WA_CRUVATRETS2IQ_STR-RU_TERRITORYCLASSFCTNOKTMO sy-vline 
WA_CRUVATRETS2IQ_STR-RU_VATRETURNVERSION sy-vline 
WA_CRUVATRETS2IQ_STR-RU_VATRETURNSECTION sy-vline 
WA_CRUVATRETS2IQ_STR-RU_VATRETURNSECTIONTYPE sy-vline 
WA_CRUVATRETS2IQ_STR-RU_VATSUBSCENARIOVERSION sy-vline 
WA_CRUVATRETS2IQ_STR-RU_VATSUBSCENARIO sy-vline 
WA_CRUVATRETS2IQ_STR-RU_VATSCENARIO sy-vline 
WA_CRUVATRETS2IQ_STR-STATRYRPTGENTITY sy-vline 
WA_CRUVATRETS2IQ_STR-STATRYRPTCATEGORY sy-vline 
WA_CRUVATRETS2IQ_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.