ABAP Select data from SAP table RCGRIIOT 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 RCGRIIOT 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 RCGRIIOT. 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 RCGRIIOT 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_RCGRIIOT TYPE STANDARD TABLE OF RCGRIIOT,
      WA_RCGRIIOT TYPE RCGRIIOT,
      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: <RCGRIIOT> TYPE RCGRIIOT.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM RCGRIIOT
*  INTO TABLE @DATA(IT_RCGRIIOT2).
*--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_RCGRIIOT INDEX 1 INTO DATA(WA_RCGRIIOT2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<RCGRIIOT>-MARKFLG = 1.
<RCGRIIOT>-SELEFLG = 1.
<RCGRIIOT>-LINENO = 1.
<RCGRIIOT>-LINEMOD = 1.
<RCGRIIOT>-CHCOFLG = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_RCGRIIOT-LOCKMOD, sy-vline,
  WA_RCGRIIOT-INTRFLG, sy-vline,
  WA_RCGRIIOT-MANDT, sy-vline,
  WA_RCGRIIOT-RECN, sy-vline,
  WA_RCGRIIOT-ACTN, sy-vline,
  WA_RCGRIIOT-VALFR, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_RCGRIIOT 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_RCGRIIOT 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_RCGRIIOT INTO WA_RCGRIIOT.


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

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

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

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

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

*Conversion exit ISOLA, internal->external for field LANGU
CALL FUNCTION 'CONVERSION_EXIT_ISOLA_OUTPUT'
  EXPORTING
    input =                      WA_RCGRIIOT-LANGU
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCGRIIOT-LANGU.
WRITE:/ 'New Value:', ld_input.

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

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

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

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

*Conversion exit ALPHA, internal->external for field RECNROOT_ORIG
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_RCGRIIOT-RECNROOT_ORIG
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_RCGRIIOT-RECNROOT_ORIG.
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_RCGRIIOT_STR, 
MARKFLG TYPE STRING,
SELEFLG TYPE STRING,
LINENO TYPE STRING,
LINEMOD TYPE STRING,
CHCOFLG TYPE STRING,
LOCKMOD TYPE STRING,
INTRFLG TYPE STRING,
MANDT TYPE STRING,
RECN TYPE STRING,
ACTN TYPE STRING,
VALFR TYPE STRING,
VALTO TYPE STRING,
AENNR TYPE STRING,
DELFLG TYPE STRING,
PARKFLG TYPE STRING,
CRDAT TYPE STRING,
CRNAM TYPE STRING,
UPDDAT TYPE STRING,
UPDNAM TYPE STRING,
SRSID TYPE STRING,
OWNID TYPE STRING,
RECNROOT TYPE STRING,
IDTYPE TYPE STRING,
IDCAT TYPE STRING,
LANGU TYPE STRING,
IDENT TYPE STRING,
IDENTNM TYPE STRING,
LTXTFLG TYPE STRING,
FORMATFLG TYPE STRING,
ORD TYPE STRING,
DOKAR TYPE STRING,
DOKNR TYPE STRING,
DOKVR TYPE STRING,
DOKTL TYPE STRING,
FLG_INHSRC TYPE STRING,
FLG_INHOVR TYPE STRING,
FLG_INHEXCL TYPE STRING,
RECN_TPLH TYPE STRING,
RECNTRI_SRC TYPE STRING,
RECNTRI_ORIG TYPE STRING,
RECNROOT_ORIG TYPE STRING,
TPL_ORD TYPE STRING,
LTXTUPD TYPE STRING,
INH_ICON TYPE STRING,
STATUS_ICON TYPE STRING,
FLG_PROTECTED_BY_STATUS TYPE STRING,
VACLID_STATUS TYPE STRING,
LAND_STATUS TYPE STRING,
DETAIL_RVLID_STATUS TYPE STRING,
VALFR_STATUS TYPE STRING,
FLG_STATUS_WARNING TYPE STRING,
SLST_COUNT TYPE STRING,
USAGE_COUNT TYPE STRING,
NOAUTHFLG TYPE STRING,
STATUS_ICONQU TYPE STRING,END OF T_EKKO_STR.
DATA: WA_RCGRIIOT_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_RCGRIIOT_STR-MARKFLG sy-vline 
WA_RCGRIIOT_STR-SELEFLG sy-vline 
WA_RCGRIIOT_STR-LINENO sy-vline 
WA_RCGRIIOT_STR-LINEMOD sy-vline 
WA_RCGRIIOT_STR-CHCOFLG sy-vline 
WA_RCGRIIOT_STR-LOCKMOD sy-vline 
WA_RCGRIIOT_STR-INTRFLG sy-vline 
WA_RCGRIIOT_STR-MANDT sy-vline 
WA_RCGRIIOT_STR-RECN sy-vline 
WA_RCGRIIOT_STR-ACTN sy-vline 
WA_RCGRIIOT_STR-VALFR sy-vline 
WA_RCGRIIOT_STR-VALTO sy-vline 
WA_RCGRIIOT_STR-AENNR sy-vline 
WA_RCGRIIOT_STR-DELFLG sy-vline 
WA_RCGRIIOT_STR-PARKFLG sy-vline 
WA_RCGRIIOT_STR-CRDAT sy-vline 
WA_RCGRIIOT_STR-CRNAM sy-vline 
WA_RCGRIIOT_STR-UPDDAT sy-vline 
WA_RCGRIIOT_STR-UPDNAM sy-vline 
WA_RCGRIIOT_STR-SRSID sy-vline 
WA_RCGRIIOT_STR-OWNID sy-vline 
WA_RCGRIIOT_STR-RECNROOT sy-vline 
WA_RCGRIIOT_STR-IDTYPE sy-vline 
WA_RCGRIIOT_STR-IDCAT sy-vline 
WA_RCGRIIOT_STR-LANGU sy-vline 
WA_RCGRIIOT_STR-IDENT sy-vline 
WA_RCGRIIOT_STR-IDENTNM sy-vline 
WA_RCGRIIOT_STR-LTXTFLG sy-vline 
WA_RCGRIIOT_STR-FORMATFLG sy-vline 
WA_RCGRIIOT_STR-ORD sy-vline 
WA_RCGRIIOT_STR-DOKAR sy-vline 
WA_RCGRIIOT_STR-DOKNR sy-vline 
WA_RCGRIIOT_STR-DOKVR sy-vline 
WA_RCGRIIOT_STR-DOKTL sy-vline 
WA_RCGRIIOT_STR-FLG_INHSRC sy-vline 
WA_RCGRIIOT_STR-FLG_INHOVR sy-vline 
WA_RCGRIIOT_STR-FLG_INHEXCL sy-vline 
WA_RCGRIIOT_STR-RECN_TPLH sy-vline 
WA_RCGRIIOT_STR-RECNTRI_SRC sy-vline 
WA_RCGRIIOT_STR-RECNTRI_ORIG sy-vline 
WA_RCGRIIOT_STR-RECNROOT_ORIG sy-vline 
WA_RCGRIIOT_STR-TPL_ORD sy-vline 
WA_RCGRIIOT_STR-LTXTUPD sy-vline 
WA_RCGRIIOT_STR-INH_ICON sy-vline 
WA_RCGRIIOT_STR-STATUS_ICON sy-vline 
WA_RCGRIIOT_STR-FLG_PROTECTED_BY_STATUS sy-vline 
WA_RCGRIIOT_STR-VACLID_STATUS sy-vline 
WA_RCGRIIOT_STR-LAND_STATUS sy-vline 
WA_RCGRIIOT_STR-DETAIL_RVLID_STATUS sy-vline 
WA_RCGRIIOT_STR-VALFR_STATUS sy-vline 
WA_RCGRIIOT_STR-FLG_STATUS_WARNING sy-vline 
WA_RCGRIIOT_STR-SLST_COUNT sy-vline 
WA_RCGRIIOT_STR-USAGE_COUNT sy-vline 
WA_RCGRIIOT_STR-NOAUTHFLG sy-vline 
WA_RCGRIIOT_STR-STATUS_ICONQU sy-vline      INTO ld_text SEPARATED BY SPACE.

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