ABAP Select data from SAP table RFVI_UM_XVIMIUH into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RFVI_UM_XVIMIUH
*  INTO TABLE @DATA(IT_RFVI_UM_XVIMIUH2).
*--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_RFVI_UM_XVIMIUH INDEX 1 INTO DATA(WA_RFVI_UM_XVIMIUH2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RFVI_UM_XVIMIUH>-S_VIMIUH = 1.
<RFVI_UM_XVIMIUH>-MANDT = 1.
<RFVI_UM_XVIMIUH>-INTRENO = 1.
<RFVI_UM_XVIMIUH>-SKOART = 1.
<RFVI_UM_XVIMIUH>-DGUELTIG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RFVI_UM_XVIMIUH-BUMSPROJ, sy-vline,
  WA_RFVI_UM_XVIMIUH-BMINUMS, sy-vline,
  WA_RFVI_UM_XVIMIUH-AMELDIN, sy-vline,
  WA_RFVI_UM_XVIMIUH-PPROZ0, sy-vline,
  WA_RFVI_UM_XVIMIUH-NETTO_KZ, sy-vline,
  WA_RFVI_UM_XVIMIUH-MMINUMS, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RFVI_UM_XVIMIUH 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_RFVI_UM_XVIMIUH 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_RFVI_UM_XVIMIUH INTO WA_RFVI_UM_XVIMIUH.


*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 CUNIT, internal->external for field UEINHEIT
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RFVI_UM_XVIMIUH-UEINHEIT
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RFVI_UM_XVIMIUH-UEINHEIT.
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_RFVI_UM_XVIMIUH_STR, 
S_VIMIUH TYPE STRING,
MANDT TYPE STRING,
INTRENO TYPE STRING,
SKOART TYPE STRING,
DGUELTIG TYPE STRING,
BUMSPROJ TYPE STRING,
BMINUMS TYPE STRING,
AMELDIN TYPE STRING,
PPROZ0 TYPE STRING,
NETTO_KZ TYPE STRING,
MMINUMS TYPE STRING,
GESUMSATZ TYPE STRING,
ABRVAR TYPE STRING,
UEINHEIT TYPE STRING,
UMINUMS TYPE STRING,
UPLANUMS TYPE STRING,
SUMSABGRVERF TYPE STRING,
PPROZ2 TYPE STRING,
BMAXUMS TYPE STRING,
JEXACT_DAY TYPE STRING,
BMELD_MIN TYPE STRING,
BMELD_MAX TYPE STRING,
UBMELD_MIN TYPE STRING,
UBMELD_MAX TYPE STRING,
S_RESTRICTION TYPE STRING,
BIS TYPE STRING,
JCHG_NEW_VIMIUH TYPE STRING,
FLG_FROM_DB TYPE STRING,
ORG_DGUELTIG TYPE STRING,
FLG_LAST TYPE STRING,
FLG_FIRST TYPE STRING,
FLG_NEW_INTERVAL TYPE STRING,
OLD_INTERVAL_FROM TYPE STRING,
FLG_NEW_SETTLVAR TYPE STRING,
OLD_SETTLVAR_FROM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RFVI_UM_XVIMIUH_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_RFVI_UM_XVIMIUH_STR-S_VIMIUH sy-vline 
WA_RFVI_UM_XVIMIUH_STR-MANDT sy-vline 
WA_RFVI_UM_XVIMIUH_STR-INTRENO sy-vline 
WA_RFVI_UM_XVIMIUH_STR-SKOART sy-vline 
WA_RFVI_UM_XVIMIUH_STR-DGUELTIG sy-vline 
WA_RFVI_UM_XVIMIUH_STR-BUMSPROJ sy-vline 
WA_RFVI_UM_XVIMIUH_STR-BMINUMS sy-vline 
WA_RFVI_UM_XVIMIUH_STR-AMELDIN sy-vline 
WA_RFVI_UM_XVIMIUH_STR-PPROZ0 sy-vline 
WA_RFVI_UM_XVIMIUH_STR-NETTO_KZ sy-vline 
WA_RFVI_UM_XVIMIUH_STR-MMINUMS sy-vline 
WA_RFVI_UM_XVIMIUH_STR-GESUMSATZ sy-vline 
WA_RFVI_UM_XVIMIUH_STR-ABRVAR sy-vline 
WA_RFVI_UM_XVIMIUH_STR-UEINHEIT sy-vline 
WA_RFVI_UM_XVIMIUH_STR-UMINUMS sy-vline 
WA_RFVI_UM_XVIMIUH_STR-UPLANUMS sy-vline 
WA_RFVI_UM_XVIMIUH_STR-SUMSABGRVERF sy-vline 
WA_RFVI_UM_XVIMIUH_STR-PPROZ2 sy-vline 
WA_RFVI_UM_XVIMIUH_STR-BMAXUMS sy-vline 
WA_RFVI_UM_XVIMIUH_STR-JEXACT_DAY sy-vline 
WA_RFVI_UM_XVIMIUH_STR-BMELD_MIN sy-vline 
WA_RFVI_UM_XVIMIUH_STR-BMELD_MAX sy-vline 
WA_RFVI_UM_XVIMIUH_STR-UBMELD_MIN sy-vline 
WA_RFVI_UM_XVIMIUH_STR-UBMELD_MAX sy-vline 
WA_RFVI_UM_XVIMIUH_STR-S_RESTRICTION sy-vline 
WA_RFVI_UM_XVIMIUH_STR-BIS sy-vline 
WA_RFVI_UM_XVIMIUH_STR-JCHG_NEW_VIMIUH sy-vline 
WA_RFVI_UM_XVIMIUH_STR-FLG_FROM_DB sy-vline 
WA_RFVI_UM_XVIMIUH_STR-ORG_DGUELTIG sy-vline 
WA_RFVI_UM_XVIMIUH_STR-FLG_LAST sy-vline 
WA_RFVI_UM_XVIMIUH_STR-FLG_FIRST sy-vline 
WA_RFVI_UM_XVIMIUH_STR-FLG_NEW_INTERVAL sy-vline 
WA_RFVI_UM_XVIMIUH_STR-OLD_INTERVAL_FROM sy-vline 
WA_RFVI_UM_XVIMIUH_STR-FLG_NEW_SETTLVAR sy-vline 
WA_RFVI_UM_XVIMIUH_STR-OLD_SETTLVAR_FROM sy-vline      INTO ld_text SEPARATED BY SPACE.

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