I am trying to find out if a missing index on a foreign key would cause a deadlock. I always thought is would only cause a share lock and hold up other DML, not deadlock it.
This asktom link http://tinyurl.com/djgco (search for deadlock and read comments/responses) seems to suggest you only get a share lock.
However I was sent these links also...some don't seem to support the idea of deadlocks but others do. Anyone know the answer here? Anyone think of a quick test case which demonstrates this?