ABAP Select data from SAP table IOTHREVENTSTP_D into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM IOTHREVENTSTP_D
*  INTO TABLE @DATA(IT_IOTHREVENTSTP_D2).
*--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_IOTHREVENTSTP_D INDEX 1 INTO DATA(WA_IOTHREVENTSTP_D2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<IOTHREVENTSTP_D>-MANDT = 1.
<IOTHREVENTSTP_D>-DRAFTUUID = 1.
<IOTHREVENTSTP_D>-PARENTDRAFTUUID = 1.
<IOTHREVENTSTP_D>-ROOTDRAFTUUID = 1.
<IOTHREVENTSTP_D>-TRIPDOC = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_IOTHREVENTSTP_D-TRIPDOCITEM, sy-vline,
  WA_IOTHREVENTSTP_D-TRIPEVENTNUMBER, sy-vline,
  WA_IOTHREVENTSTP_D-TRIPEVENTLINETYPE, sy-vline,
  WA_IOTHREVENTSTP_D-TRIPEVENTTYPE, sy-vline,
  WA_IOTHREVENTSTP_D-DEMURRAGEOTHEREVENTQTY, sy-vline,
  WA_IOTHREVENTSTP_D-DEMURRAGEOTHEREVENTQTYUOM, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_IOTHREVENTSTP_D 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_IOTHREVENTSTP_D 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_IOTHREVENTSTP_D INTO WA_IOTHREVENTSTP_D.


*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 TRIPDOC
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_IOTHREVENTSTP_D-TRIPDOC
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_IOTHREVENTSTP_D-TRIPDOC.
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_IOTHREVENTSTP_D_STR, 
MANDT TYPE STRING,
DRAFTUUID TYPE STRING,
PARENTDRAFTUUID TYPE STRING,
ROOTDRAFTUUID TYPE STRING,
TRIPDOC TYPE STRING,
TRIPDOCITEM TYPE STRING,
TRIPEVENTNUMBER TYPE STRING,
TRIPEVENTLINETYPE TYPE STRING,
TRIPEVENTTYPE TYPE STRING,
DEMURRAGEOTHEREVENTQTY TYPE STRING,
DEMURRAGEOTHEREVENTQTYUOM TYPE STRING,
TRIPEVENTRATE TYPE STRING,
REASONCODE TYPE STRING,
REASONCODEDESCRIPTION TYPE STRING,
PLANNEDSTARTDATETIME TYPE STRING,
PLANNEDENDDATETIME TYPE STRING,
ACTUALSTARTDATETIME TYPE STRING,
ACTUALENDDATETIME TYPE STRING,
TRIPEVTPLANNEDSTARTDATE TYPE STRING,
TRIPEVTPLANNEDSTARTTIME TYPE STRING,
TRIPEVTPLANNEDENDDATE TYPE STRING,
TRIPEVTPLANNEDENDTIME TYPE STRING,
TRIPEVTACTUALSTARTDATE TYPE STRING,
TRIPEVTACTUALSTARTTIME TYPE STRING,
TRIPEVTACTUALENDDATE TYPE STRING,
TRIPEVTACTUALENDTIME TYPE STRING,
HASACTIVEENTITY TYPE STRING,
DRAFTENTITYCREATIONDATETIME TYPE STRING,
DRAFTENTITYLASTCHANGEDATETIME TYPE STRING,
DRAFTADMINISTRATIVEDATAUUID TYPE STRING,
DRAFTENTITYCONSISTENCYSTATUS TYPE STRING,
DRAFTENTITYOPERATIONCODE TYPE STRING,END OF T_EKKO_STR.
DATA: WA_IOTHREVENTSTP_D_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_IOTHREVENTSTP_D_STR-MANDT sy-vline 
WA_IOTHREVENTSTP_D_STR-DRAFTUUID sy-vline 
WA_IOTHREVENTSTP_D_STR-PARENTDRAFTUUID sy-vline 
WA_IOTHREVENTSTP_D_STR-ROOTDRAFTUUID sy-vline 
WA_IOTHREVENTSTP_D_STR-TRIPDOC sy-vline 
WA_IOTHREVENTSTP_D_STR-TRIPDOCITEM sy-vline 
WA_IOTHREVENTSTP_D_STR-TRIPEVENTNUMBER sy-vline 
WA_IOTHREVENTSTP_D_STR-TRIPEVENTLINETYPE sy-vline 
WA_IOTHREVENTSTP_D_STR-TRIPEVENTTYPE sy-vline 
WA_IOTHREVENTSTP_D_STR-DEMURRAGEOTHEREVENTQTY sy-vline 
WA_IOTHREVENTSTP_D_STR-DEMURRAGEOTHEREVENTQTYUOM sy-vline 
WA_IOTHREVENTSTP_D_STR-TRIPEVENTRATE sy-vline 
WA_IOTHREVENTSTP_D_STR-REASONCODE sy-vline 
WA_IOTHREVENTSTP_D_STR-REASONCODEDESCRIPTION sy-vline 
WA_IOTHREVENTSTP_D_STR-PLANNEDSTARTDATETIME sy-vline 
WA_IOTHREVENTSTP_D_STR-PLANNEDENDDATETIME sy-vline 
WA_IOTHREVENTSTP_D_STR-ACTUALSTARTDATETIME sy-vline 
WA_IOTHREVENTSTP_D_STR-ACTUALENDDATETIME sy-vline 
WA_IOTHREVENTSTP_D_STR-TRIPEVTPLANNEDSTARTDATE sy-vline 
WA_IOTHREVENTSTP_D_STR-TRIPEVTPLANNEDSTARTTIME sy-vline 
WA_IOTHREVENTSTP_D_STR-TRIPEVTPLANNEDENDDATE sy-vline 
WA_IOTHREVENTSTP_D_STR-TRIPEVTPLANNEDENDTIME sy-vline 
WA_IOTHREVENTSTP_D_STR-TRIPEVTACTUALSTARTDATE sy-vline 
WA_IOTHREVENTSTP_D_STR-TRIPEVTACTUALSTARTTIME sy-vline 
WA_IOTHREVENTSTP_D_STR-TRIPEVTACTUALENDDATE sy-vline 
WA_IOTHREVENTSTP_D_STR-TRIPEVTACTUALENDTIME sy-vline 
WA_IOTHREVENTSTP_D_STR-HASACTIVEENTITY sy-vline 
WA_IOTHREVENTSTP_D_STR-DRAFTENTITYCREATIONDATETIME sy-vline 
WA_IOTHREVENTSTP_D_STR-DRAFTENTITYLASTCHANGEDATETIME sy-vline 
WA_IOTHREVENTSTP_D_STR-DRAFTADMINISTRATIVEDATAUUID sy-vline 
WA_IOTHREVENTSTP_D_STR-DRAFTENTITYCONSISTENCYSTATUS sy-vline 
WA_IOTHREVENTSTP_D_STR-DRAFTENTITYOPERATIONCODE sy-vline      INTO ld_text SEPARATED BY SPACE.

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