ABAP Select data from SAP table RGIUF 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 RGIUF 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 RGIUF. 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 RGIUF 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_RGIUF TYPE STANDARD TABLE OF RGIUF,
      WA_RGIUF TYPE RGIUF,
      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: <RGIUF> TYPE RGIUF.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RGIUF
*  INTO TABLE @DATA(IT_RGIUF2).
*--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_RGIUF INDEX 1 INTO DATA(WA_RGIUF2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RGIUF>-BUKRS = 1.
<RGIUF>-ACTIV = 1.
<RGIUF>-RCOMP = 1.
<RGIUF>-BUDAT = 1.
<RGIUF>-WWERT = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RGIUF-VALUT, sy-vline,
  WA_RGIUF-WAERS, sy-vline,
  WA_RGIUF-KURSF, sy-vline,
  WA_RGIUF-GCURR, sy-vline,
  WA_RGIUF-BUPER, sy-vline,
  WA_RGIUF-GJAHR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RGIUF 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_RGIUF 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_RGIUF INTO WA_RGIUF.


*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 RCOMP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RGIUF-RCOMP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGIUF-RCOMP.
WRITE:/ 'New Value:', ld_input.

*Conversion exit EXCRT, internal->external for field KURSF
CALL FUNCTION 'CONVERSION_EXIT_EXCRT_OUTPUT'
  EXPORTING
    input =                      WA_RGIUF-KURSF
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGIUF-KURSF.
WRITE:/ 'New Value:', ld_input.

*Conversion exit GJAHR, internal->external for field GJAHR
CALL FUNCTION 'CONVERSION_EXIT_GJAHR_OUTPUT'
  EXPORTING
    input =                      WA_RGIUF-GJAHR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGIUF-GJAHR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RGIUF-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RGIUF-LOGSYS.
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_RGIUF_STR, 
BUKRS TYPE STRING,
ACTIV TYPE STRING,
RCOMP TYPE STRING,
BUDAT TYPE STRING,
WWERT TYPE STRING,
VALUT TYPE STRING,
WAERS TYPE STRING,
KURSF TYPE STRING,
GCURR TYPE STRING,
BUPER TYPE STRING,
GJAHR TYPE STRING,
DOCNR TYPE STRING,
RVERS TYPE STRING,
DOCCT TYPE STRING,
TAB1 TYPE STRING,
TAB2 TYPE STRING,
TAB3 TYPE STRING,
TAB4 TYPE STRING,
INTERFACE TYPE STRING,
XBILK TYPE STRING,
GVTYP TYPE STRING,
XNEGP TYPE STRING,
REFDOCNR TYPE STRING,
REFDOCCT TYPE STRING,
KURST TYPE STRING,
AWORG TYPE STRING,
AWTYP TYPE STRING,
LOGSYS TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RGIUF_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_RGIUF_STR-BUKRS sy-vline 
WA_RGIUF_STR-ACTIV sy-vline 
WA_RGIUF_STR-RCOMP sy-vline 
WA_RGIUF_STR-BUDAT sy-vline 
WA_RGIUF_STR-WWERT sy-vline 
WA_RGIUF_STR-VALUT sy-vline 
WA_RGIUF_STR-WAERS sy-vline 
WA_RGIUF_STR-KURSF sy-vline 
WA_RGIUF_STR-GCURR sy-vline 
WA_RGIUF_STR-BUPER sy-vline 
WA_RGIUF_STR-GJAHR sy-vline 
WA_RGIUF_STR-DOCNR sy-vline 
WA_RGIUF_STR-RVERS sy-vline 
WA_RGIUF_STR-DOCCT sy-vline 
WA_RGIUF_STR-TAB1 sy-vline 
WA_RGIUF_STR-TAB2 sy-vline 
WA_RGIUF_STR-TAB3 sy-vline 
WA_RGIUF_STR-TAB4 sy-vline 
WA_RGIUF_STR-INTERFACE sy-vline 
WA_RGIUF_STR-XBILK sy-vline 
WA_RGIUF_STR-GVTYP sy-vline 
WA_RGIUF_STR-XNEGP sy-vline 
WA_RGIUF_STR-REFDOCNR sy-vline 
WA_RGIUF_STR-REFDOCCT sy-vline 
WA_RGIUF_STR-KURST sy-vline 
WA_RGIUF_STR-AWORG sy-vline 
WA_RGIUF_STR-AWTYP sy-vline 
WA_RGIUF_STR-LOGSYS sy-vline      INTO ld_text SEPARATED BY SPACE.

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