ABAP Select data from SAP table REIT_TAX_CORR_CALC_RESULT_L into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM REIT_TAX_CORR_CALC_RESULT_L
*  INTO TABLE @DATA(IT_REIT_TAX_CORR_CALC_RESULT_L2).
*--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_REIT_TAX_CORR_CALC_RESULT_L INDEX 1 INTO DATA(WA_REIT_TAX_CORR_CALC_RESULT_L2).


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

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

ENDLOOP.

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

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


*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 TCNO
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_REIT_TAX_CORR_CALC_RESULT_L-TCNO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_REIT_TAX_CORR_CALC_RESULT_L-TCNO.
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_REIT_TAX_CORR_CALC_RESULT_L_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,
ORIGINGUID TYPE STRING,
BUKRS TYPE STRING,
TCNO TYPE STRING,
IDENT TYPE STRING,
XTC TYPE STRING,
DISTOPTRATE TYPE STRING,
PROCESSGUID TYPE STRING,
PROCESSID TYPE STRING,
PROCESSTITLE TYPE STRING,
REFDOCGUID TYPE STRING,
REVID TYPE STRING,
TCCALCTYPE TYPE STRING,
XTCCALCTYPE TYPE STRING,
XTCCALCRESTYPE TYPE STRING,
XMINAMTLIMIT TYPE STRING,
REFDOCID TYPE STRING,
DOCIDENT TYPE STRING,
GLACCOUNT TYPE STRING,
REVDOCID TYPE STRING,
REVDOCGUID TYPE STRING,
REVDOCIDENT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_REIT_TAX_CORR_CALC_RESULT_L_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_REIT_TAX_CORR_CALC_RESULT_L_STR-MANDT sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-CALCRESULTGUID sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-INTRENO sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-TCKEYDATE sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-TCYEAR sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-TCMONTH sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-TAXCODE sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-CALCDATEFROM sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-CALCDATETO sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-TCCALCRESTYPE sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-CURRENCY sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-BASENETAMOUNT sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-BASETAXAMOUNT sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-BASEDEDTAXAMT sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-BASENONDEDTAXAMT sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-CALCDEDTAXAMT sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-CALCNONDEDTAXAMT sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-CALCOPTRATE sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-TCCALCYEARAMOUNT sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-TCCALCAMOUNT sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-TCPOSTAMOUNT sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-MINAMTLIMIT sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-ISEXTDATA sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-CALCGUID sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-IGNOREINCALC sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-AVGOPTRATE sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-ORIGINGUID sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-BUKRS sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-TCNO sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-IDENT sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-XTC sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-DISTOPTRATE sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-PROCESSGUID sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-PROCESSID sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-PROCESSTITLE sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-REFDOCGUID sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-REVID sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-TCCALCTYPE sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-XTCCALCTYPE sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-XTCCALCRESTYPE sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-XMINAMTLIMIT sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-REFDOCID sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-DOCIDENT sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-GLACCOUNT sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-REVDOCID sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-REVDOCGUID sy-vline 
WA_REIT_TAX_CORR_CALC_RESULT_L_STR-REVDOCIDENT sy-vline      INTO ld_text SEPARATED BY SPACE.

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