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Introduction To Db Security

Database security entails allowing or disallowing user actions on the database and the objects within it. Oracle uses schemas and security domains to control access to data and to restrict the use of various database resources.
Oracle provides comprehensive discretionary access control. Discretionary access control regulates all user access to named objects through privileges. A privilege is permission to access a named object in a prescribed manner; for example, permission to query a table. Privileges are granted to users at the discretion of other users.
• Secrecy: Users should not be able to see things they are not supposed to.

• E.g., A student can’t see other students’ grades.

• Integrity: Users should not be able to modify things they are not supposed to.

• E.g., Only instructors can assign grades.

• Availability: Users should be able to see and modify things they are allowed to.
Database Users and Schemas
Each Oracle database has a list of user......


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Approximate Word Count: 2065
Approximate Pages: 9 (250 words per double-spaced page)

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