ABAP Select data from SAP table RIHAFVR into internal table

Get Example source ABAP code based on a different SAP table
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Below is a number of ABAP code snippets to demonstrate how to select data from SAP RIHAFVR 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 RIHAFVR. 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 RIHAFVR 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_RIHAFVR TYPE STANDARD TABLE OF RIHAFVR,
      WA_RIHAFVR TYPE RIHAFVR,
      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: <RIHAFVR> TYPE RIHAFVR.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RIHAFVR
*  INTO TABLE @DATA(IT_RIHAFVR2).
*--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_RIHAFVR INDEX 1 INTO DATA(WA_RIHAFVR2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RIHAFVR>-MANDT = 1.
<RIHAFVR>-RUECK = 1.
<RIHAFVR>-RMZHL = 1.
<RIHAFVR>-ERSDA = 1.
<RIHAFVR>-ERNAM = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RIHAFVR-LAEDA, sy-vline,
  WA_RIHAFVR-AENAM, sy-vline,
  WA_RIHAFVR-BUDAT, sy-vline,
  WA_RIHAFVR-INGPR, sy-vline,
  WA_RIHAFVR-WERKI, sy-vline,
  WA_RIHAFVR-LTXA1, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RIHAFVR 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_RIHAFVR 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_RIHAFVR INTO WA_RIHAFVR.


*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 ISMNE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RIHAFVR-ISMNE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHAFVR-ISMNE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field IDAUE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RIHAFVR-IDAUE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHAFVR-IDAUE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field AUFNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RIHAFVR-AUFNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHAFVR-AUFNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field VORNR
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_RIHAFVR-VORNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHAFVR-VORNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field OFMNE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RIHAFVR-OFMNE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHAFVR-OFMNE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ODAUE
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RIHAFVR-ODAUE
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHAFVR-ODAUE.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ARBEH
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_RIHAFVR-ARBEH
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHAFVR-ARBEH.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ALPHA, internal->external for field EQUNR
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RIHAFVR-EQUNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHAFVR-EQUNR.
WRITE:/ 'New Value:', ld_input.

*Conversion exit NUMCV, internal->external for field UVORN
CALL FUNCTION 'CONVERSION_EXIT_NUMCV_OUTPUT'
  EXPORTING
    input =                      WA_RIHAFVR-UVORN
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHAFVR-UVORN.
WRITE:/ 'New Value:', ld_input.

*Conversion exit ISOLA, internal->external for field TXTSP
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RIHAFVR-TXTSP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RIHAFVR-TXTSP.
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_RIHAFVR_STR, 
MANDT TYPE STRING,
RUECK TYPE STRING,
RMZHL TYPE STRING,
ERSDA TYPE STRING,
ERNAM TYPE STRING,
LAEDA TYPE STRING,
AENAM TYPE STRING,
BUDAT TYPE STRING,
INGPR TYPE STRING,
WERKI TYPE STRING,
LTXA1 TYPE STRING,
ABARB TYPE STRING,
ISMNW TYPE STRING,
ISMNE TYPE STRING,
LEARR TYPE STRING,
IDAUR TYPE STRING,
IDAUE TYPE STRING,
PERNR TYPE STRING,
ISDD TYPE STRING,
ISDZ TYPE STRING,
IEDD TYPE STRING,
IEDZ TYPE STRING,
PEDD TYPE STRING,
PEDZ TYPE STRING,
AUERU TYPE STRING,
AUSOR TYPE STRING,
STNDR TYPE STRING,
AUART TYPE STRING,
AUFNR TYPE STRING,
VORNR TYPE STRING,
OFMNW TYPE STRING,
OFMNE TYPE STRING,
LEKNW TYPE STRING,
ODAUR TYPE STRING,
ODAUE TYPE STRING,
STOKZ TYPE STRING,
STZHL TYPE STRING,
IARBPL TYPE STRING,
LOART TYPE STRING,
PWERK TYPE STRING,
ARBEI TYPE STRING,
ARBEH TYPE STRING,
PARBPL TYPE STRING,
LARNT TYPE STRING,
TPLNR TYPE STRING,
EQUNR TYPE STRING,
STTXT TYPE STRING,
USTXT TYPE STRING,
GRUND TYPE STRING,
UVORN TYPE STRING,
NAME TYPE STRING,
PERSA TYPE STRING,
TXTSP TYPE STRING,
IWERK TYPE STRING,
BEMOT TYPE STRING,
EXTID TYPE STRING,
UII TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RIHAFVR_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_RIHAFVR_STR-MANDT sy-vline 
WA_RIHAFVR_STR-RUECK sy-vline 
WA_RIHAFVR_STR-RMZHL sy-vline 
WA_RIHAFVR_STR-ERSDA sy-vline 
WA_RIHAFVR_STR-ERNAM sy-vline 
WA_RIHAFVR_STR-LAEDA sy-vline 
WA_RIHAFVR_STR-AENAM sy-vline 
WA_RIHAFVR_STR-BUDAT sy-vline 
WA_RIHAFVR_STR-INGPR sy-vline 
WA_RIHAFVR_STR-WERKI sy-vline 
WA_RIHAFVR_STR-LTXA1 sy-vline 
WA_RIHAFVR_STR-ABARB sy-vline 
WA_RIHAFVR_STR-ISMNW sy-vline 
WA_RIHAFVR_STR-ISMNE sy-vline 
WA_RIHAFVR_STR-LEARR sy-vline 
WA_RIHAFVR_STR-IDAUR sy-vline 
WA_RIHAFVR_STR-IDAUE sy-vline 
WA_RIHAFVR_STR-PERNR sy-vline 
WA_RIHAFVR_STR-ISDD sy-vline 
WA_RIHAFVR_STR-ISDZ sy-vline 
WA_RIHAFVR_STR-IEDD sy-vline 
WA_RIHAFVR_STR-IEDZ sy-vline 
WA_RIHAFVR_STR-PEDD sy-vline 
WA_RIHAFVR_STR-PEDZ sy-vline 
WA_RIHAFVR_STR-AUERU sy-vline 
WA_RIHAFVR_STR-AUSOR sy-vline 
WA_RIHAFVR_STR-STNDR sy-vline 
WA_RIHAFVR_STR-AUART sy-vline 
WA_RIHAFVR_STR-AUFNR sy-vline 
WA_RIHAFVR_STR-VORNR sy-vline 
WA_RIHAFVR_STR-OFMNW sy-vline 
WA_RIHAFVR_STR-OFMNE sy-vline 
WA_RIHAFVR_STR-LEKNW sy-vline 
WA_RIHAFVR_STR-ODAUR sy-vline 
WA_RIHAFVR_STR-ODAUE sy-vline 
WA_RIHAFVR_STR-STOKZ sy-vline 
WA_RIHAFVR_STR-STZHL sy-vline 
WA_RIHAFVR_STR-IARBPL sy-vline 
WA_RIHAFVR_STR-LOART sy-vline 
WA_RIHAFVR_STR-PWERK sy-vline 
WA_RIHAFVR_STR-ARBEI sy-vline 
WA_RIHAFVR_STR-ARBEH sy-vline 
WA_RIHAFVR_STR-PARBPL sy-vline 
WA_RIHAFVR_STR-LARNT sy-vline 
WA_RIHAFVR_STR-TPLNR sy-vline 
WA_RIHAFVR_STR-EQUNR sy-vline 
WA_RIHAFVR_STR-STTXT sy-vline 
WA_RIHAFVR_STR-USTXT sy-vline 
WA_RIHAFVR_STR-GRUND sy-vline 
WA_RIHAFVR_STR-UVORN sy-vline 
WA_RIHAFVR_STR-NAME sy-vline 
WA_RIHAFVR_STR-PERSA sy-vline 
WA_RIHAFVR_STR-TXTSP sy-vline 
WA_RIHAFVR_STR-IWERK sy-vline 
WA_RIHAFVR_STR-BEMOT sy-vline 
WA_RIHAFVR_STR-EXTID sy-vline 
WA_RIHAFVR_STR-UII sy-vline      INTO ld_text SEPARATED BY SPACE.

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