Beginning Oracle Database 11g Administration From Novice to Professional

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CHAPTER 8 USER MANAGEMENT AND DATA LOADING
Ordinary users don’t have access to the dictionary views whose names begin with
, because that would give them the ability to obtain information about other users.
Instead, they have access to special sets of views whose names begin with and .
The views whose names begin with show only those objects the current user actually
owns. As illustrated in Listing 8-5, Oracle displays an error message when user tries
to query the view. When user queries the view instead, Oracle
displays the same information that we saw in Listing 8-1. And, interestingly enough, when
user queries the table, we see that it has access to tables in several other
schemas.
Listing 8-5. Querying the , , and Dictionary Views