is this the correct syntax to create a trigger?
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Thread: is this the correct syntax to create a trigger?

  1. #1
    Join Date
    Dec 2000
    Posts
    95

    Question


    first i have created a table named as "marks"

    SQL> select * from marks;

    NAME ID SUB1 SUB2 TOTAL
    ---------- --------- --------- --------- ---------
    a1 1 2 3 5
    a2 2 3 1 4
    a3 3 5 1 6
    a4 4 6 2 8
    a5 5 1 2 3
    a6 6 3 4 7
    a7 7 1 8 9

    7 rows selected.

    and then i have created a view on marks table like this

    create view marks_view as select * from marks where id<4;

    the details of the marks_view:

    SQL> select * from marks_view;

    NAME ID SUB1 SUB2 TOTAL
    ---------- --------- --------- --------- ---------
    a1 1 2 3 5
    a2 2 3 1 4
    a3 3 5 1 6


    and then i have created a trigger like as follows

    SQL> create trigger marks_view_updt instead of update on marks_view
    2 for each row
    3 begin
    4 if :old.name != :new.name
    5 then
    6 update marks
    7 set name = :new.name
    8 where name = :old.name
    9 ;
    10 end if;
    11 end; /

    when i execute this command i got a following warning message

    Warning: Trigger created with compilation errors.


    if someone finds any problem in this please help me.
    This only some small example but if this works i am going to implement this in my project.

    thankyou

    SrinivasM

  2. #2
    Join Date
    Apr 2000
    Posts
    126

    Wink is this the correct syntax to create a trigger?

    Did you check sys.dba_errors to what errors you are getting?

  3. #3
    Join Date
    Dec 2000
    Posts
    46
    you can also look at user_errors to find the errors.

    Do a delete from user_errors;
    Create trigger .......;
    select * from user_errors;

    Do you have that slash immediately after the " end; / " on line 11?
    If you don't have that slash on a line by itself, that is an error.


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