ABAP Select data from SAP table CRUVATRETITEM12C into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CRUVATRETITEM12C 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 CRUVATRETITEM12C. 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 CRUVATRETITEM12C 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_CRUVATRETITEM12C TYPE STANDARD TABLE OF CRUVATRETITEM12C,
      WA_CRUVATRETITEM12C TYPE CRUVATRETITEM12C,
      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: <CRUVATRETITEM12C> TYPE CRUVATRETITEM12C.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CRUVATRETITEM12C.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CRUVATRETITEM12C
  INTO TABLE IT_CRUVATRETITEM12C.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CRUVATRETITEM12C
*  INTO TABLE @DATA(IT_CRUVATRETITEM12C2).
*--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_CRUVATRETITEM12C INDEX 1 INTO DATA(WA_CRUVATRETITEM12C2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CRUVATRETITEM12C ASSIGNING <CRUVATRETITEM12C>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CRUVATRETITEM12C>-MANDT = 1.
<CRUVATRETITEM12C>-COMPANYCODE = 1.
<CRUVATRETITEM12C>-ACCOUNTINGDOCUMENT = 1.
<CRUVATRETITEM12C>-FISCALYEAR = 1.
<CRUVATRETITEM12C>-ACCOUNTINGDOCUMENTTYPE = 1.

ENDLOOP.

LOOP AT IT_CRUVATRETITEM12C INTO WA_CRUVATRETITEM12C.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CRUVATRETITEM12C-EXTERNALINVOICE, sy-vline,
  WA_CRUVATRETITEM12C-DOCUMENTDATE, sy-vline,
  WA_CRUVATRETITEM12C-RU_PARTNERORGANIZATIONINN, sy-vline,
  WA_CRUVATRETITEM12C-RU_PARTNERORGANIZATIONKPP, sy-vline,
  WA_CRUVATRETITEM12C-RU_PARTNERPERSONINN, sy-vline,
  WA_CRUVATRETITEM12C-CURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CRUVATRETITEM12C 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_CRUVATRETITEM12C 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_CRUVATRETITEM12C INTO WA_CRUVATRETITEM12C.


*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_CRUVATRETITEM12C-ACCOUNTINGDOCUMENT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRUVATRETITEM12C-ACCOUNTINGDOCUMENT.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field FISCALYEAR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_CRUVATRETITEM12C-FISCALYEAR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRUVATRETITEM12C-FISCALYEAR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field TOTALAMOUNTINTRANSACTIONCRCY
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_CRUVATRETITEM12C-TOTALAMOUNTINTRANSACTIONCRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRUVATRETITEM12C-TOTALAMOUNTINTRANSACTIONCRCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AU132, internal->external for field TAXBASEAMOUNTINTRANSCRCY
CALL FUNCTION 'CONVERSION_EXIT_AU132_OUTPUT'
  EXPORTING
    input =                      WA_CRUVATRETITEM12C-TAXBASEAMOUNTINTRANSCRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRUVATRETITEM12C-TAXBASEAMOUNTINTRANSCRCY.
WRITE:/ 'New Value:', ld_input.

*Conversion exit AC172, internal->external for field TAXAMOUNTINTRANSCRCY
CALL FUNCTION 'CONVERSION_EXIT_AC172_OUTPUT'
  EXPORTING
    input =                      WA_CRUVATRETITEM12C-TAXAMOUNTINTRANSCRCY
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CRUVATRETITEM12C-TAXAMOUNTINTRANSCRCY.
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_CRUVATRETITEM12C_STR, 
MANDT TYPE STRING,
COMPANYCODE TYPE STRING,
ACCOUNTINGDOCUMENT TYPE STRING,
FISCALYEAR TYPE STRING,
ACCOUNTINGDOCUMENTTYPE TYPE STRING,
EXTERNALINVOICE TYPE STRING,
DOCUMENTDATE TYPE STRING,
RU_PARTNERORGANIZATIONINN TYPE STRING,
RU_PARTNERORGANIZATIONKPP TYPE STRING,
RU_PARTNERPERSONINN TYPE STRING,
CURRENCY TYPE STRING,
CURRENCYISOCODE TYPE STRING,
TOTALAMOUNTINTRANSACTIONCRCY TYPE STRING,
TAXBASEAMOUNTINTRANSCRCY TYPE STRING,
TAXAMOUNTINTRANSCRCY TYPE STRING,
SIGN TYPE STRING,
STATRYRPTGENTITY TYPE STRING,
STATRYRPTCATEGORY TYPE STRING,
STATRYRPTRUNID TYPE STRING,
ACTIONRULEISGENERATED TYPE STRING,
AUTHORIZATIONGROUP TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CRUVATRETITEM12C_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_CRUVATRETITEM12C_STR-MANDT sy-vline 
WA_CRUVATRETITEM12C_STR-COMPANYCODE sy-vline 
WA_CRUVATRETITEM12C_STR-ACCOUNTINGDOCUMENT sy-vline 
WA_CRUVATRETITEM12C_STR-FISCALYEAR sy-vline 
WA_CRUVATRETITEM12C_STR-ACCOUNTINGDOCUMENTTYPE sy-vline 
WA_CRUVATRETITEM12C_STR-EXTERNALINVOICE sy-vline 
WA_CRUVATRETITEM12C_STR-DOCUMENTDATE sy-vline 
WA_CRUVATRETITEM12C_STR-RU_PARTNERORGANIZATIONINN sy-vline 
WA_CRUVATRETITEM12C_STR-RU_PARTNERORGANIZATIONKPP sy-vline 
WA_CRUVATRETITEM12C_STR-RU_PARTNERPERSONINN sy-vline 
WA_CRUVATRETITEM12C_STR-CURRENCY sy-vline 
WA_CRUVATRETITEM12C_STR-CURRENCYISOCODE sy-vline 
WA_CRUVATRETITEM12C_STR-TOTALAMOUNTINTRANSACTIONCRCY sy-vline 
WA_CRUVATRETITEM12C_STR-TAXBASEAMOUNTINTRANSCRCY sy-vline 
WA_CRUVATRETITEM12C_STR-TAXAMOUNTINTRANSCRCY sy-vline 
WA_CRUVATRETITEM12C_STR-SIGN sy-vline 
WA_CRUVATRETITEM12C_STR-STATRYRPTGENTITY sy-vline 
WA_CRUVATRETITEM12C_STR-STATRYRPTCATEGORY sy-vline 
WA_CRUVATRETITEM12C_STR-STATRYRPTRUNID sy-vline 
WA_CRUVATRETITEM12C_STR-ACTIONRULEISGENERATED sy-vline 
WA_CRUVATRETITEM12C_STR-AUTHORIZATIONGROUP sy-vline      INTO ld_text SEPARATED BY SPACE.

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