ABAP Select data from SAP table ROIO_CAP_UTIL into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP ROIO_CAP_UTIL 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_CAP_UTIL. 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_CAP_UTIL 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_CAP_UTIL TYPE STANDARD TABLE OF ROIO_CAP_UTIL,
      WA_ROIO_CAP_UTIL TYPE ROIO_CAP_UTIL,
      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_CAP_UTIL> TYPE ROIO_CAP_UTIL.

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM ROIO_CAP_UTIL
*  INTO TABLE @DATA(IT_ROIO_CAP_UTIL2).
*--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_CAP_UTIL INDEX 1 INTO DATA(WA_ROIO_CAP_UTIL2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<ROIO_CAP_UTIL>-VOYAGE_NR = 1.
<ROIO_CAP_UTIL>-VOYAGE_TYPE = 1.
<ROIO_CAP_UTIL>-VOYAGE_TYPETXT = 1.
<ROIO_CAP_UTIL>-BOAT_NAME = 1.
<ROIO_CAP_UTIL>-VEHICLE_NR = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_ROIO_CAP_UTIL-VEHICLE_ID, sy-vline,
  WA_ROIO_CAP_UTIL-VEHICLE_TYPE, sy-vline,
  WA_ROIO_CAP_UTIL-VEHICLE_TYPETXT, sy-vline,
  WA_ROIO_CAP_UTIL-VEH_CAP_FOOTPRINT, sy-vline,
  WA_ROIO_CAP_UTIL-VEH_CAP_FOOTPR_UN, sy-vline,
  WA_ROIO_CAP_UTIL-VEH_CAP_WEIGHT, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_ROIO_CAP_UTIL 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_CAP_UTIL 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_CAP_UTIL INTO WA_ROIO_CAP_UTIL.


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

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

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

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

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

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

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

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

*Conversion exit MATN1, internal->external for field HANDUNIT_MATNR
CALL FUNCTION 'CONVERSION_EXIT_MATN1_OUTPUT'
  EXPORTING
    input =                      WA_ROIO_CAP_UTIL-HANDUNIT_MATNR
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_ROIO_CAP_UTIL-HANDUNIT_MATNR.
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_CAP_UTIL_STR, 
VOYAGE_NR TYPE STRING,
VOYAGE_TYPE TYPE STRING,
VOYAGE_TYPETXT TYPE STRING,
BOAT_NAME TYPE STRING,
VEHICLE_NR TYPE STRING,
VEHICLE_ID TYPE STRING,
VEHICLE_TYPE TYPE STRING,
VEHICLE_TYPETXT TYPE STRING,
VEH_CAP_FOOTPRINT TYPE STRING,
VEH_CAP_FOOTPR_UN TYPE STRING,
VEH_CAP_WEIGHT TYPE STRING,
VEH_CAP_WEIGHT_UN TYPE STRING,
SHIPMENT_NR TYPE STRING,
SHPMT_TYPE TYPE STRING,
SHPMT_TYPETXT TYPE STRING,
HANDLING_UNIT_NR TYPE STRING,
HANDUNIT_EXTID TYPE STRING,
HANDUNIT_MATNR TYPE STRING,
HANDUNIT_WEIGHT TYPE STRING,
HANDUNIT_FOOTPRINT TYPE STRING,
DEPARTURE_POINT TYPE STRING,
DEPARTURE_SEQ TYPE STRING,
DESTINATION_POINT TYPE STRING,
DESTINATION_SEQ TYPE STRING,
CAP_UTIL_FOOTPR TYPE STRING,
CAP_UTIL_WEIGHT TYPE STRING,END OF T_EKKO_STR.
DATA: WA_ROIO_CAP_UTIL_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_CAP_UTIL_STR-VOYAGE_NR sy-vline 
WA_ROIO_CAP_UTIL_STR-VOYAGE_TYPE sy-vline 
WA_ROIO_CAP_UTIL_STR-VOYAGE_TYPETXT sy-vline 
WA_ROIO_CAP_UTIL_STR-BOAT_NAME sy-vline 
WA_ROIO_CAP_UTIL_STR-VEHICLE_NR sy-vline 
WA_ROIO_CAP_UTIL_STR-VEHICLE_ID sy-vline 
WA_ROIO_CAP_UTIL_STR-VEHICLE_TYPE sy-vline 
WA_ROIO_CAP_UTIL_STR-VEHICLE_TYPETXT sy-vline 
WA_ROIO_CAP_UTIL_STR-VEH_CAP_FOOTPRINT sy-vline 
WA_ROIO_CAP_UTIL_STR-VEH_CAP_FOOTPR_UN sy-vline 
WA_ROIO_CAP_UTIL_STR-VEH_CAP_WEIGHT sy-vline 
WA_ROIO_CAP_UTIL_STR-VEH_CAP_WEIGHT_UN sy-vline 
WA_ROIO_CAP_UTIL_STR-SHIPMENT_NR sy-vline 
WA_ROIO_CAP_UTIL_STR-SHPMT_TYPE sy-vline 
WA_ROIO_CAP_UTIL_STR-SHPMT_TYPETXT sy-vline 
WA_ROIO_CAP_UTIL_STR-HANDLING_UNIT_NR sy-vline 
WA_ROIO_CAP_UTIL_STR-HANDUNIT_EXTID sy-vline 
WA_ROIO_CAP_UTIL_STR-HANDUNIT_MATNR sy-vline 
WA_ROIO_CAP_UTIL_STR-HANDUNIT_WEIGHT sy-vline 
WA_ROIO_CAP_UTIL_STR-HANDUNIT_FOOTPRINT sy-vline 
WA_ROIO_CAP_UTIL_STR-DEPARTURE_POINT sy-vline 
WA_ROIO_CAP_UTIL_STR-DEPARTURE_SEQ sy-vline 
WA_ROIO_CAP_UTIL_STR-DESTINATION_POINT sy-vline 
WA_ROIO_CAP_UTIL_STR-DESTINATION_SEQ sy-vline 
WA_ROIO_CAP_UTIL_STR-CAP_UTIL_FOOTPR sy-vline 
WA_ROIO_CAP_UTIL_STR-CAP_UTIL_WEIGHT sy-vline      INTO ld_text SEPARATED BY SPACE.

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