ABAP Select data from SAP table ROIO_GR_FLW into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIO_GR_FLW
*  INTO TABLE @DATA(IT_ROIO_GR_FLW2).
*--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_ROIO_GR_FLW INDEX 1 INTO DATA(WA_ROIO_GR_FLW2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIO_GR_FLW>-DLTYP = 1.
<ROIO_GR_FLW>-VSTEL = 1.
<ROIO_GR_FLW>-VKORG = 1.
<ROIO_GR_FLW>-EBELN_T = 1.
<ROIO_GR_FLW>-KUNNR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIO_GR_FLW-HOLD, sy-vline,
  WA_ROIO_GR_FLW-DLVNR, sy-vline,
  WA_ROIO_GR_FLW-PKGNR, sy-vline,
  WA_ROIO_GR_FLW-GR_GRP_1, sy-vline,
  WA_ROIO_GR_FLW-SORT1, sy-vline,
  WA_ROIO_GR_FLW-GR_GRP_2, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIO_GR_FLW 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_ROIO_GR_FLW 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_ROIO_GR_FLW INTO WA_ROIO_GR_FLW.


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

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

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

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

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

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

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

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

*Conversion exit MATN1, internal->external for field MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ROIO_GR_FLW-MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIO_GR_FLW-MATNR.
WRITE:/ 'New Value:', ld_input.

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

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

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

*Conversion exit MATN1, internal->external for field VHILM
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ROIO_GR_FLW-VHILM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIO_GR_FLW-VHILM.
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_ROIO_GR_FLW_STR, 
DLTYP TYPE STRING,
VSTEL TYPE STRING,
VKORG TYPE STRING,
EBELN_T TYPE STRING,
KUNNR TYPE STRING,
HOLD TYPE STRING,
DLVNR TYPE STRING,
PKGNR TYPE STRING,
GR_GRP_1 TYPE STRING,
SORT1 TYPE STRING,
GR_GRP_2 TYPE STRING,
SORT2 TYPE STRING,
GR_GRP_3 TYPE STRING,
SORT3 TYPE STRING,
GLOBAL_COUNTER TYPE STRING,
FLWNR TYPE STRING,
SPROC TYPE STRING,
RESWK TYPE STRING,
VTWEG TYPE STRING,
SPART TYPE STRING,
MBLNR TYPE STRING,
MJAHR TYPE STRING,
MBLPO TYPE STRING,
EBELN_P TYPE STRING,
EBELP_P TYPE STRING,
ETENR_P TYPE STRING,
BANFN_P TYPE STRING,
BNFPO_P TYPE STRING,
BANFN_T TYPE STRING,
BNFPO_T TYPE STRING,
EBELP_T TYPE STRING,
ETENR_T TYPE STRING,
RSNUM TYPE STRING,
RSPOS TYPE STRING,
RSART TYPE STRING,
AUFNR TYPE STRING,
MATNR TYPE STRING,
WERKS TYPE STRING,
LGORT TYPE STRING,
BWTAR TYPE STRING,
CHARG TYPE STRING,
KNTTP TYPE STRING,
MENGE TYPE STRING,
MEINS TYPE STRING,
ERFMG TYPE STRING,
ERFME TYPE STRING,
LGMNG TYPE STRING,
LMEIN TYPE STRING,
VHILM TYPE STRING,
GR_OFFSHORE TYPE STRING,
GR_DEL TYPE STRING,
GR_PACK TYPE STRING,
GR_PACK_NRG TYPE STRING,
GR_DLV_ERROR TYPE STRING,
GR_PKG_WARNING TYPE STRING,
GR_PKG_CALL TYPE STRING,
GR_OUTPUT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIO_GR_FLW_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_ROIO_GR_FLW_STR-DLTYP sy-vline 
WA_ROIO_GR_FLW_STR-VSTEL sy-vline 
WA_ROIO_GR_FLW_STR-VKORG sy-vline 
WA_ROIO_GR_FLW_STR-EBELN_T sy-vline 
WA_ROIO_GR_FLW_STR-KUNNR sy-vline 
WA_ROIO_GR_FLW_STR-HOLD sy-vline 
WA_ROIO_GR_FLW_STR-DLVNR sy-vline 
WA_ROIO_GR_FLW_STR-PKGNR sy-vline 
WA_ROIO_GR_FLW_STR-GR_GRP_1 sy-vline 
WA_ROIO_GR_FLW_STR-SORT1 sy-vline 
WA_ROIO_GR_FLW_STR-GR_GRP_2 sy-vline 
WA_ROIO_GR_FLW_STR-SORT2 sy-vline 
WA_ROIO_GR_FLW_STR-GR_GRP_3 sy-vline 
WA_ROIO_GR_FLW_STR-SORT3 sy-vline 
WA_ROIO_GR_FLW_STR-GLOBAL_COUNTER sy-vline 
WA_ROIO_GR_FLW_STR-FLWNR sy-vline 
WA_ROIO_GR_FLW_STR-SPROC sy-vline 
WA_ROIO_GR_FLW_STR-RESWK sy-vline 
WA_ROIO_GR_FLW_STR-VTWEG sy-vline 
WA_ROIO_GR_FLW_STR-SPART sy-vline 
WA_ROIO_GR_FLW_STR-MBLNR sy-vline 
WA_ROIO_GR_FLW_STR-MJAHR sy-vline 
WA_ROIO_GR_FLW_STR-MBLPO sy-vline 
WA_ROIO_GR_FLW_STR-EBELN_P sy-vline 
WA_ROIO_GR_FLW_STR-EBELP_P sy-vline 
WA_ROIO_GR_FLW_STR-ETENR_P sy-vline 
WA_ROIO_GR_FLW_STR-BANFN_P sy-vline 
WA_ROIO_GR_FLW_STR-BNFPO_P sy-vline 
WA_ROIO_GR_FLW_STR-BANFN_T sy-vline 
WA_ROIO_GR_FLW_STR-BNFPO_T sy-vline 
WA_ROIO_GR_FLW_STR-EBELP_T sy-vline 
WA_ROIO_GR_FLW_STR-ETENR_T sy-vline 
WA_ROIO_GR_FLW_STR-RSNUM sy-vline 
WA_ROIO_GR_FLW_STR-RSPOS sy-vline 
WA_ROIO_GR_FLW_STR-RSART sy-vline 
WA_ROIO_GR_FLW_STR-AUFNR sy-vline 
WA_ROIO_GR_FLW_STR-MATNR sy-vline 
WA_ROIO_GR_FLW_STR-WERKS sy-vline 
WA_ROIO_GR_FLW_STR-LGORT sy-vline 
WA_ROIO_GR_FLW_STR-BWTAR sy-vline 
WA_ROIO_GR_FLW_STR-CHARG sy-vline 
WA_ROIO_GR_FLW_STR-KNTTP sy-vline 
WA_ROIO_GR_FLW_STR-MENGE sy-vline 
WA_ROIO_GR_FLW_STR-MEINS sy-vline 
WA_ROIO_GR_FLW_STR-ERFMG sy-vline 
WA_ROIO_GR_FLW_STR-ERFME sy-vline 
WA_ROIO_GR_FLW_STR-LGMNG sy-vline 
WA_ROIO_GR_FLW_STR-LMEIN sy-vline 
WA_ROIO_GR_FLW_STR-VHILM sy-vline 
WA_ROIO_GR_FLW_STR-GR_OFFSHORE sy-vline 
WA_ROIO_GR_FLW_STR-GR_DEL sy-vline 
WA_ROIO_GR_FLW_STR-GR_PACK sy-vline 
WA_ROIO_GR_FLW_STR-GR_PACK_NRG sy-vline 
WA_ROIO_GR_FLW_STR-GR_DLV_ERROR sy-vline 
WA_ROIO_GR_FLW_STR-GR_PKG_WARNING sy-vline 
WA_ROIO_GR_FLW_STR-GR_PKG_CALL sy-vline 
WA_ROIO_GR_FLW_STR-GR_OUTPUT sy-vline      INTO ld_text SEPARATED BY SPACE.

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