Triggers -- The specified event type(s) is/are not valid on the specified target object

Question

I'm trying to learn about triggers. I'm trying to create a DDL Trigger by creating a new query

create trigger triggername
on quickdb
for create_table
as 
begin
print 'new table created'
end

but I keep getting

The specified event type(s) is/are not valid on the specified target object

Answer 1

You shouldn't write the database name in the ON clause of a DDL trigger, you specify if it's on the database level or on the server level.
If it's on the database level, it will only apply to the database it was created in.
Change your code to this:

use quickdb
go

create trigger triggername
on database
for create_table
as 
begin
    print 'new table created'
end