Beginning Oracle Database 11g Administration From Novice to Professional

CHAPTER 8 USER MANAGEMENT AND DATA LOADING 165
Note that other users will not be able to retrieve or modify the contents of tables
owned by user unless he explicitly gives them the necessary privileges.
Listing 8-9 shows some examples of granting table privileges to users—the word
denotes all users of the database.
Listing 8-9. Granting Table Privileges to Users
TABLE, SYSTEM, AND ROLE PRIVILEGES
A recurring theme in this chapter’s discussion has been that Oracle gives us the ability to control tightly
what users are permitted to do. Object privileges are privileges to perform operations on objects; examples
include , , , and privileges on tables. System privileges are privileges
that do not apply to specific objects; examples are and . Roles are collections
of privileges that are created for convenience; all the privileges in a collection can be assigned
to a user with a single command. For example, if you want to give a user the ability to perform database
administration functions, you could give the role to him or her—it includes such privileges as
and .
The permissions granted to each user of the database are tracked in the ,
, and views; here are their definitions: