ABAP Select data from SAP table OIJ_IF_CIF_VEHICLE into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIJ_IF_CIF_VEHICLE
*  INTO TABLE @DATA(IT_OIJ_IF_CIF_VEHICLE2).
*--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_OIJ_IF_CIF_VEHICLE INDEX 1 INTO DATA(WA_OIJ_IF_CIF_VEHICLE2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIJ_IF_CIF_VEHICLE>-METHOD = 1.
<OIJ_IF_CIF_VEHICLE>-VEHICLE = 1.
<OIJ_IF_CIF_VEHICLE>-VEH_TYPE = 1.
<OIJ_IF_CIF_VEHICLE>-VEH_ID = 1.
<OIJ_IF_CIF_VEHICLE>-CARRIER = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIJ_IF_CIF_VEHICLE-VOL_UOM, sy-vline,
  WA_OIJ_IF_CIF_VEHICLE-WGT_UOM, sy-vline,
  WA_OIJ_IF_CIF_VEHICLE-DIM_UOM, sy-vline,
  WA_OIJ_IF_CIF_VEHICLE-VEH_MAXWGT, sy-vline,
  WA_OIJ_IF_CIF_VEHICLE-VEH_UNLWGT, sy-vline,
  WA_OIJ_IF_CIF_VEHICLE-VEH_MAXVOL, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIJ_IF_CIF_VEHICLE 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_OIJ_IF_CIF_VEHICLE 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_OIJ_IF_CIF_VEHICLE INTO WA_OIJ_IF_CIF_VEHICLE.


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

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

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

*Conversion exit CUNIT, internal->external for field DIM_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OIJ_IF_CIF_VEHICLE-DIM_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ_IF_CIF_VEHICLE-DIM_UOM.
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_OIJ_IF_CIF_VEHICLE_STR, 
METHOD TYPE STRING,
VEHICLE TYPE STRING,
VEH_TYPE TYPE STRING,
VEH_ID TYPE STRING,
CARRIER TYPE STRING,
VOL_UOM TYPE STRING,
WGT_UOM TYPE STRING,
DIM_UOM TYPE STRING,
VEH_MAXWGT TYPE STRING,
VEH_UNLWGT TYPE STRING,
VEH_MAXVOL TYPE STRING,
VEH_HEIGHT TYPE STRING,
VEH_WIDTH TYPE STRING,
VEH_LENGTH TYPE STRING,
EXT_LOCNO TYPE STRING,
LOCTYPE TYPE STRING,
CALENDAR TYPE STRING,
TZONE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIJ_IF_CIF_VEHICLE_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_OIJ_IF_CIF_VEHICLE_STR-METHOD sy-vline 
WA_OIJ_IF_CIF_VEHICLE_STR-VEHICLE sy-vline 
WA_OIJ_IF_CIF_VEHICLE_STR-VEH_TYPE sy-vline 
WA_OIJ_IF_CIF_VEHICLE_STR-VEH_ID sy-vline 
WA_OIJ_IF_CIF_VEHICLE_STR-CARRIER sy-vline 
WA_OIJ_IF_CIF_VEHICLE_STR-VOL_UOM sy-vline 
WA_OIJ_IF_CIF_VEHICLE_STR-WGT_UOM sy-vline 
WA_OIJ_IF_CIF_VEHICLE_STR-DIM_UOM sy-vline 
WA_OIJ_IF_CIF_VEHICLE_STR-VEH_MAXWGT sy-vline 
WA_OIJ_IF_CIF_VEHICLE_STR-VEH_UNLWGT sy-vline 
WA_OIJ_IF_CIF_VEHICLE_STR-VEH_MAXVOL sy-vline 
WA_OIJ_IF_CIF_VEHICLE_STR-VEH_HEIGHT sy-vline 
WA_OIJ_IF_CIF_VEHICLE_STR-VEH_WIDTH sy-vline 
WA_OIJ_IF_CIF_VEHICLE_STR-VEH_LENGTH sy-vline 
WA_OIJ_IF_CIF_VEHICLE_STR-EXT_LOCNO sy-vline 
WA_OIJ_IF_CIF_VEHICLE_STR-LOCTYPE sy-vline 
WA_OIJ_IF_CIF_VEHICLE_STR-CALENDAR sy-vline 
WA_OIJ_IF_CIF_VEHICLE_STR-TZONE sy-vline      INTO ld_text SEPARATED BY SPACE.

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