A profile can be associated with a user to limit the resources available to that user or to specify a condition on how passwords are administered. By limiting the computing resources that any one individual can use, you can prevent any one user from exhausting too many resources and affecting other users. (This is known as denial of service.) By placing limits on how passwords are administered, you can help to safeguard the authentication process for your Oracle database.
Profiles can be used if you enable dynamic resource limits with either the RESOURCE_LIMIT initialization parameter or the ALTER SYSTEM SET statement. Once a profile has been defined with the CREATE PROFILE command, you can assign a user to a profile with either the CREATE USER or ALTER USER statement.
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