ABAP Select data from SAP table TTONFINFOCOMPARE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM TTONFINFOCOMPARE
*  INTO TABLE @DATA(IT_TTONFINFOCOMPARE2).
*--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_TTONFINFOCOMPARE INDEX 1 INTO DATA(WA_TTONFINFOCOMPARE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<TTONFINFOCOMPARE>-TAB_FIELDS = 1.
<TTONFINFOCOMPARE>-RANL = 1.
<TTONFINFOCOMPARE>-SARCHIV = 1.
<TTONFINFOCOMPARE>-BUKRS = 1.
<TTONFINFOCOMPARE>-SBEWZITI = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_TTONFINFOCOMPARE-DVALUT, sy-vline,
  WA_TTONFINFOCOMPARE-BNWHR, sy-vline,
  WA_TTONFINFOCOMPARE-SBWHR, sy-vline,
  WA_TTONFINFOCOMPARE-DBERVON, sy-vline,
  WA_TTONFINFOCOMPARE-DBERBIS, sy-vline,
  WA_TTONFINFOCOMPARE-SBEWART, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_TTONFINFOCOMPARE 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_TTONFINFOCOMPARE 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_TTONFINFOCOMPARE INTO WA_TTONFINFOCOMPARE.


*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 RANL
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_TTONFINFOCOMPARE-RANL
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_TTONFINFOCOMPARE-RANL.
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_TTONFINFOCOMPARE_STR, 
TAB_FIELDS TYPE STRING,
RANL TYPE STRING,
SARCHIV TYPE STRING,
BUKRS TYPE STRING,
SBEWZITI TYPE STRING,
DVALUT TYPE STRING,
BNWHR TYPE STRING,
SBWHR TYPE STRING,
DBERVON TYPE STRING,
DBERBIS TYPE STRING,
SBEWART TYPE STRING,
SKOART TYPE STRING,
DFAELL TYPE STRING,END OF T_EKKO_STR.
DATA: WA_TTONFINFOCOMPARE_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_TTONFINFOCOMPARE_STR-TAB_FIELDS sy-vline 
WA_TTONFINFOCOMPARE_STR-RANL sy-vline 
WA_TTONFINFOCOMPARE_STR-SARCHIV sy-vline 
WA_TTONFINFOCOMPARE_STR-BUKRS sy-vline 
WA_TTONFINFOCOMPARE_STR-SBEWZITI sy-vline 
WA_TTONFINFOCOMPARE_STR-DVALUT sy-vline 
WA_TTONFINFOCOMPARE_STR-BNWHR sy-vline 
WA_TTONFINFOCOMPARE_STR-SBWHR sy-vline 
WA_TTONFINFOCOMPARE_STR-DBERVON sy-vline 
WA_TTONFINFOCOMPARE_STR-DBERBIS sy-vline 
WA_TTONFINFOCOMPARE_STR-SBEWART sy-vline 
WA_TTONFINFOCOMPARE_STR-SKOART sy-vline 
WA_TTONFINFOCOMPARE_STR-DFAELL sy-vline      INTO ld_text SEPARATED BY SPACE.

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