ABAP Select data from SAP table OIJ08_TRIPEVENT into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP OIJ08_TRIPEVENT 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 OIJ08_TRIPEVENT. 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 OIJ08_TRIPEVENT 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_OIJ08_TRIPEVENT TYPE STANDARD TABLE OF OIJ08_TRIPEVENT,
      WA_OIJ08_TRIPEVENT TYPE OIJ08_TRIPEVENT,
      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: <OIJ08_TRIPEVENT> TYPE OIJ08_TRIPEVENT.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_OIJ08_TRIPEVENT.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM OIJ08_TRIPEVENT
  INTO TABLE IT_OIJ08_TRIPEVENT.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM OIJ08_TRIPEVENT
*  INTO TABLE @DATA(IT_OIJ08_TRIPEVENT2).
*--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_OIJ08_TRIPEVENT INDEX 1 INTO DATA(WA_OIJ08_TRIPEVENT2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_OIJ08_TRIPEVENT ASSIGNING <OIJ08_TRIPEVENT>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<OIJ08_TRIPEVENT>-MANDT = 1.
<OIJ08_TRIPEVENT>-TRIP_ID = 1.
<OIJ08_TRIPEVENT>-TRIP_ITEM = 1.
<OIJ08_TRIPEVENT>-EVENT_NR = 1.
<OIJ08_TRIPEVENT>-LINETYPE = 1.

ENDLOOP.

LOOP AT IT_OIJ08_TRIPEVENT INTO WA_OIJ08_TRIPEVENT.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_OIJ08_TRIPEVENT-OP_POINT, sy-vline,
  WA_OIJ08_TRIPEVENT-EVENT, sy-vline,
  WA_OIJ08_TRIPEVENT-RSNCODE, sy-vline,
  WA_OIJ08_TRIPEVENT-DESCR, sy-vline,
  WA_OIJ08_TRIPEVENT-EVT_QTY, sy-vline,
  WA_OIJ08_TRIPEVENT-EVT_UOM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_OIJ08_TRIPEVENT 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_OIJ08_TRIPEVENT 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_OIJ08_TRIPEVENT INTO WA_OIJ08_TRIPEVENT.


*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 TRIP_ID
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_OIJ08_TRIPEVENT-TRIP_ID
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ08_TRIPEVENT-TRIP_ID.
WRITE:/ 'New Value:', ld_input.

*Conversion exit CUNIT, internal->external for field ADD_UOM
CALL FUNCTION 'CONVERSION_EXIT_CUNIT_OUTPUT'
  EXPORTING
    input =                      WA_OIJ08_TRIPEVENT-ADD_UOM
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_OIJ08_TRIPEVENT-ADD_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_OIJ08_TRIPEVENT_STR, 
MANDT TYPE STRING,
TRIP_ID TYPE STRING,
TRIP_ITEM TYPE STRING,
EVENT_NR TYPE STRING,
LINETYPE TYPE STRING,
OP_POINT TYPE STRING,
EVENT TYPE STRING,
RSNCODE TYPE STRING,
DESCR TYPE STRING,
EVT_QTY TYPE STRING,
EVT_UOM TYPE STRING,
ADD_TIME TYPE STRING,
ADD_UOM TYPE STRING,
EV_RULE TYPE STRING,
RATE TYPE STRING,
PSTDTF TYPE STRING,
PSTTMF TYPE STRING,
PEDDTT TYPE STRING,
PEDTMT TYPE STRING,
ASTDTF TYPE STRING,
ASTTMF TYPE STRING,
AEDDTT TYPE STRING,
AEDTMT TYPE STRING,
DEL_IND TYPE STRING,
ERDAT TYPE STRING,
ERZEIT TYPE STRING,
ERNAM TYPE STRING,
AEDAT TYPE STRING,
AEZEIT TYPE STRING,
AENAM TYPE STRING,END OF T_EKKO_STR.
DATA: WA_OIJ08_TRIPEVENT_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_OIJ08_TRIPEVENT_STR-MANDT sy-vline 
WA_OIJ08_TRIPEVENT_STR-TRIP_ID sy-vline 
WA_OIJ08_TRIPEVENT_STR-TRIP_ITEM sy-vline 
WA_OIJ08_TRIPEVENT_STR-EVENT_NR sy-vline 
WA_OIJ08_TRIPEVENT_STR-LINETYPE sy-vline 
WA_OIJ08_TRIPEVENT_STR-OP_POINT sy-vline 
WA_OIJ08_TRIPEVENT_STR-EVENT sy-vline 
WA_OIJ08_TRIPEVENT_STR-RSNCODE sy-vline 
WA_OIJ08_TRIPEVENT_STR-DESCR sy-vline 
WA_OIJ08_TRIPEVENT_STR-EVT_QTY sy-vline 
WA_OIJ08_TRIPEVENT_STR-EVT_UOM sy-vline 
WA_OIJ08_TRIPEVENT_STR-ADD_TIME sy-vline 
WA_OIJ08_TRIPEVENT_STR-ADD_UOM sy-vline 
WA_OIJ08_TRIPEVENT_STR-EV_RULE sy-vline 
WA_OIJ08_TRIPEVENT_STR-RATE sy-vline 
WA_OIJ08_TRIPEVENT_STR-PSTDTF sy-vline 
WA_OIJ08_TRIPEVENT_STR-PSTTMF sy-vline 
WA_OIJ08_TRIPEVENT_STR-PEDDTT sy-vline 
WA_OIJ08_TRIPEVENT_STR-PEDTMT sy-vline 
WA_OIJ08_TRIPEVENT_STR-ASTDTF sy-vline 
WA_OIJ08_TRIPEVENT_STR-ASTTMF sy-vline 
WA_OIJ08_TRIPEVENT_STR-AEDDTT sy-vline 
WA_OIJ08_TRIPEVENT_STR-AEDTMT sy-vline 
WA_OIJ08_TRIPEVENT_STR-DEL_IND sy-vline 
WA_OIJ08_TRIPEVENT_STR-ERDAT sy-vline 
WA_OIJ08_TRIPEVENT_STR-ERZEIT sy-vline 
WA_OIJ08_TRIPEVENT_STR-ERNAM sy-vline 
WA_OIJ08_TRIPEVENT_STR-AEDAT sy-vline 
WA_OIJ08_TRIPEVENT_STR-AEZEIT sy-vline 
WA_OIJ08_TRIPEVENT_STR-AENAM sy-vline      INTO ld_text SEPARATED BY SPACE.

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