ABAP Select data from SAP table VIITTCCALCRES into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM VIITTCCALCRES
*  INTO TABLE @DATA(IT_VIITTCCALCRES2).
*--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_VIITTCCALCRES INDEX 1 INTO DATA(WA_VIITTCCALCRES2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<VIITTCCALCRES>-MANDT = 1.
<VIITTCCALCRES>-CALCRESULTGUID = 1.
<VIITTCCALCRES>-INTRENO = 1.
<VIITTCCALCRES>-TCKEYDATE = 1.
<VIITTCCALCRES>-TCYEAR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_VIITTCCALCRES-TCMONTH, sy-vline,
  WA_VIITTCCALCRES-TAXCODE, sy-vline,
  WA_VIITTCCALCRES-CALCDATEFROM, sy-vline,
  WA_VIITTCCALCRES-CALCDATETO, sy-vline,
  WA_VIITTCCALCRES-TCCALCRESTYPE, sy-vline,
  WA_VIITTCCALCRES-CURRENCY, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_VIITTCCALCRES 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_VIITTCCALCRES 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_VIITTCCALCRES INTO WA_VIITTCCALCRES.


*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.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_VIITTCCALCRES_STR, 
MANDT TYPE STRING,
CALCRESULTGUID TYPE STRING,
INTRENO TYPE STRING,
TCKEYDATE TYPE STRING,
TCYEAR TYPE STRING,
TCMONTH TYPE STRING,
TAXCODE TYPE STRING,
CALCDATEFROM TYPE STRING,
CALCDATETO TYPE STRING,
TCCALCRESTYPE TYPE STRING,
CURRENCY TYPE STRING,
BASENETAMOUNT TYPE STRING,
BASETAXAMOUNT TYPE STRING,
BASEDEDTAXAMT TYPE STRING,
BASENONDEDTAXAMT TYPE STRING,
CALCDEDTAXAMT TYPE STRING,
CALCNONDEDTAXAMT TYPE STRING,
CALCOPTRATE TYPE STRING,
TCCALCYEARAMOUNT TYPE STRING,
TCCALCAMOUNT TYPE STRING,
TCPOSTAMOUNT TYPE STRING,
MINAMTLIMIT TYPE STRING,
ISEXTDATA TYPE STRING,
CALCGUID TYPE STRING,
IGNOREINCALC TYPE STRING,
AVGOPTRATE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_VIITTCCALCRES_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_VIITTCCALCRES_STR-MANDT sy-vline 
WA_VIITTCCALCRES_STR-CALCRESULTGUID sy-vline 
WA_VIITTCCALCRES_STR-INTRENO sy-vline 
WA_VIITTCCALCRES_STR-TCKEYDATE sy-vline 
WA_VIITTCCALCRES_STR-TCYEAR sy-vline 
WA_VIITTCCALCRES_STR-TCMONTH sy-vline 
WA_VIITTCCALCRES_STR-TAXCODE sy-vline 
WA_VIITTCCALCRES_STR-CALCDATEFROM sy-vline 
WA_VIITTCCALCRES_STR-CALCDATETO sy-vline 
WA_VIITTCCALCRES_STR-TCCALCRESTYPE sy-vline 
WA_VIITTCCALCRES_STR-CURRENCY sy-vline 
WA_VIITTCCALCRES_STR-BASENETAMOUNT sy-vline 
WA_VIITTCCALCRES_STR-BASETAXAMOUNT sy-vline 
WA_VIITTCCALCRES_STR-BASEDEDTAXAMT sy-vline 
WA_VIITTCCALCRES_STR-BASENONDEDTAXAMT sy-vline 
WA_VIITTCCALCRES_STR-CALCDEDTAXAMT sy-vline 
WA_VIITTCCALCRES_STR-CALCNONDEDTAXAMT sy-vline 
WA_VIITTCCALCRES_STR-CALCOPTRATE sy-vline 
WA_VIITTCCALCRES_STR-TCCALCYEARAMOUNT sy-vline 
WA_VIITTCCALCRES_STR-TCCALCAMOUNT sy-vline 
WA_VIITTCCALCRES_STR-TCPOSTAMOUNT sy-vline 
WA_VIITTCCALCRES_STR-MINAMTLIMIT sy-vline 
WA_VIITTCCALCRES_STR-ISEXTDATA sy-vline 
WA_VIITTCCALCRES_STR-CALCGUID sy-vline 
WA_VIITTCCALCRES_STR-IGNOREINCALC sy-vline 
WA_VIITTCCALCRES_STR-AVGOPTRATE sy-vline      INTO ld_text SEPARATED BY SPACE.

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