ABAP Select data from SAP table RN2F4_HIT_VALUES into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RN2F4_HIT_VALUES 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 RN2F4_HIT_VALUES. 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 RN2F4_HIT_VALUES 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_RN2F4_HIT_VALUES TYPE STANDARD TABLE OF RN2F4_HIT_VALUES,
      WA_RN2F4_HIT_VALUES TYPE RN2F4_HIT_VALUES,
      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: <RN2F4_HIT_VALUES> TYPE RN2F4_HIT_VALUES.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_RN2F4_HIT_VALUES.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM RN2F4_HIT_VALUES
  INTO TABLE IT_RN2F4_HIT_VALUES.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RN2F4_HIT_VALUES
*  INTO TABLE @DATA(IT_RN2F4_HIT_VALUES2).
*--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_RN2F4_HIT_VALUES INDEX 1 INTO DATA(WA_RN2F4_HIT_VALUES2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_RN2F4_HIT_VALUES ASSIGNING <RN2F4_HIT_VALUES>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RN2F4_HIT_VALUES>-NAME = 1.
<RN2F4_HIT_VALUES>-TABLE1 = 1.
<RN2F4_HIT_VALUES>-FIELD1 = 1.
<RN2F4_HIT_VALUES>-CODE1 = 1.
<RN2F4_HIT_VALUES>-TABLE2 = 1.

ENDLOOP.

LOOP AT IT_RN2F4_HIT_VALUES INTO WA_RN2F4_HIT_VALUES.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RN2F4_HIT_VALUES-FIELD2, sy-vline,
  WA_RN2F4_HIT_VALUES-CODE2, sy-vline,
  WA_RN2F4_HIT_VALUES-TABLE3, sy-vline,
  WA_RN2F4_HIT_VALUES-FIELD3, sy-vline,
  WA_RN2F4_HIT_VALUES-CODE3, sy-vline,
  WA_RN2F4_HIT_VALUES-TABLE4, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RN2F4_HIT_VALUES 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_RN2F4_HIT_VALUES 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_RN2F4_HIT_VALUES INTO WA_RN2F4_HIT_VALUES.


*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_RN2F4_HIT_VALUES_STR, 
NAME TYPE STRING,
TABLE1 TYPE STRING,
FIELD1 TYPE STRING,
CODE1 TYPE STRING,
TABLE2 TYPE STRING,
FIELD2 TYPE STRING,
CODE2 TYPE STRING,
TABLE3 TYPE STRING,
FIELD3 TYPE STRING,
CODE3 TYPE STRING,
TABLE4 TYPE STRING,
FIELD4 TYPE STRING,
CODE4 TYPE STRING,
TABLE5 TYPE STRING,
FIELD5 TYPE STRING,
TEXT1 TYPE STRING,
ISFOLDER TYPE STRING,
MODIFIED TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RN2F4_HIT_VALUES_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_RN2F4_HIT_VALUES_STR-NAME sy-vline 
WA_RN2F4_HIT_VALUES_STR-TABLE1 sy-vline 
WA_RN2F4_HIT_VALUES_STR-FIELD1 sy-vline 
WA_RN2F4_HIT_VALUES_STR-CODE1 sy-vline 
WA_RN2F4_HIT_VALUES_STR-TABLE2 sy-vline 
WA_RN2F4_HIT_VALUES_STR-FIELD2 sy-vline 
WA_RN2F4_HIT_VALUES_STR-CODE2 sy-vline 
WA_RN2F4_HIT_VALUES_STR-TABLE3 sy-vline 
WA_RN2F4_HIT_VALUES_STR-FIELD3 sy-vline 
WA_RN2F4_HIT_VALUES_STR-CODE3 sy-vline 
WA_RN2F4_HIT_VALUES_STR-TABLE4 sy-vline 
WA_RN2F4_HIT_VALUES_STR-FIELD4 sy-vline 
WA_RN2F4_HIT_VALUES_STR-CODE4 sy-vline 
WA_RN2F4_HIT_VALUES_STR-TABLE5 sy-vline 
WA_RN2F4_HIT_VALUES_STR-FIELD5 sy-vline 
WA_RN2F4_HIT_VALUES_STR-TEXT1 sy-vline 
WA_RN2F4_HIT_VALUES_STR-ISFOLDER sy-vline 
WA_RN2F4_HIT_VALUES_STR-MODIFIED sy-vline      INTO ld_text SEPARATED BY SPACE.

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