ABAP Select data from SAP table CDEVTRIGGER into internal table

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

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

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

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CDEVTRIGGER
*  INTO TABLE @DATA(IT_CDEVTRIGGER2).
*--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_CDEVTRIGGER INDEX 1 INTO DATA(WA_CDEVTRIGGER2).


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

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CDEVTRIGGER>-MANDT = 1.
<CDEVTRIGGER>-EHSTASKFOLLOWUPUUID = 1.
<CDEVTRIGGER>-EHSPLANNEDTASKUUID = 1.
<CDEVTRIGGER>-EHSTASKDEFINITIONUUID = 1.
<CDEVTRIGGER>-WORKFLOWTASKINTERNALID = 1.

ENDLOOP.

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

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CDEVTRIGGER-WORKFLOWTASKSTATUS, sy-vline,
  WA_CDEVTRIGGER-EHSTASKSTATUSNAME, sy-vline,
  WA_CDEVTRIGGER-EHSTASKSTARTDATE, sy-vline,
  WA_CDEVTRIGGER-EHSTASKDUEDATE, sy-vline,
  WA_CDEVTRIGGER-EHSTASKINSTCECOMPLETIONDATE, sy-vline,
  WA_CDEVTRIGGER-EHSTASKTIMEZONE, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CDEVTRIGGER 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_CDEVTRIGGER 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_CDEVTRIGGER INTO WA_CDEVTRIGGER.


*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 EHSTASKOWNERBP
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CDEVTRIGGER-EHSTASKOWNERBP
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CDEVTRIGGER-EHSTASKOWNERBP.
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_CDEVTRIGGER_STR, 
MANDT TYPE STRING,
EHSTASKFOLLOWUPUUID TYPE STRING,
EHSPLANNEDTASKUUID TYPE STRING,
EHSTASKDEFINITIONUUID TYPE STRING,
WORKFLOWTASKINTERNALID TYPE STRING,
WORKFLOWTASKSTATUS TYPE STRING,
EHSTASKSTATUSNAME TYPE STRING,
EHSTASKSTARTDATE TYPE STRING,
EHSTASKDUEDATE TYPE STRING,
EHSTASKINSTCECOMPLETIONDATE TYPE STRING,
EHSTASKTIMEZONE TYPE STRING,
EHSPLANNEDTASKID TYPE STRING,
EHSTASKOWNERBP TYPE STRING,
EHSTASKOWNERUSERNAME TYPE STRING,
PERSONFULLNAME TYPE STRING,
EHSTASKASSIGNEDUSERNAME TYPE STRING,
EHSTASKTITLE TYPE STRING,
EHSTASKDEFINITIONTYPE TYPE STRING,
EHSTASKPRIORITY TYPE STRING,
EHSTASKPRIORITYNAME TYPE STRING,
EHSTASKDEFINITIONSTATUS TYPE STRING,
EHSTASKDEFINITIONISPAUSED TYPE STRING,
EHSTASKRECURRENCETYPE TYPE STRING,
EHSLOCATIONUUID TYPE STRING,
EHSLOCATIONNAME TYPE STRING,
EHSTASKHOSTSEMANTICOBJECT TYPE STRING,
EHSTASKHOSTOBJECTINSTANCEUUID TYPE STRING,
EHSTASKHOSTOBJECTINSTANCE TYPE STRING,
EHSTASKHOSTOBJECTADAPTERCLASS TYPE STRING,
TASKFOLLOWCATEGORYCODE TYPE STRING,
EHSTRIGGERCATEGORYDESC TYPE STRING,
TASKFOLLOWREFOBJUUID TYPE STRING,
EHSTASKOWNERUSER TYPE STRING,
INCIDENTHASACCESSRESTRICTION TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CDEVTRIGGER_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_CDEVTRIGGER_STR-MANDT sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKFOLLOWUPUUID sy-vline 
WA_CDEVTRIGGER_STR-EHSPLANNEDTASKUUID sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKDEFINITIONUUID sy-vline 
WA_CDEVTRIGGER_STR-WORKFLOWTASKINTERNALID sy-vline 
WA_CDEVTRIGGER_STR-WORKFLOWTASKSTATUS sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKSTATUSNAME sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKSTARTDATE sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKDUEDATE sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKINSTCECOMPLETIONDATE sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKTIMEZONE sy-vline 
WA_CDEVTRIGGER_STR-EHSPLANNEDTASKID sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKOWNERBP sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKOWNERUSERNAME sy-vline 
WA_CDEVTRIGGER_STR-PERSONFULLNAME sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKASSIGNEDUSERNAME sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKTITLE sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKDEFINITIONTYPE sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKPRIORITY sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKPRIORITYNAME sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKDEFINITIONSTATUS sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKDEFINITIONISPAUSED sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKRECURRENCETYPE sy-vline 
WA_CDEVTRIGGER_STR-EHSLOCATIONUUID sy-vline 
WA_CDEVTRIGGER_STR-EHSLOCATIONNAME sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKHOSTSEMANTICOBJECT sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKHOSTOBJECTINSTANCEUUID sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKHOSTOBJECTINSTANCE sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKHOSTOBJECTADAPTERCLASS sy-vline 
WA_CDEVTRIGGER_STR-TASKFOLLOWCATEGORYCODE sy-vline 
WA_CDEVTRIGGER_STR-EHSTRIGGERCATEGORYDESC sy-vline 
WA_CDEVTRIGGER_STR-TASKFOLLOWREFOBJUUID sy-vline 
WA_CDEVTRIGGER_STR-EHSTASKOWNERUSER sy-vline 
WA_CDEVTRIGGER_STR-INCIDENTHASACCESSRESTRICTION sy-vline      INTO ld_text SEPARATED BY SPACE.

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