As database practitioners, we must provide a means of preventing unauthorized use of data in a database. Three areas are considered
1. Access Control: Who should be allowed access to which databases? This is typically enforced using system level accounts with passwords.
2. Authorization: for the purposes of:
- Reading Data - Such as reading another employee's salary (using a SELECT statement)
- Writing Data - Such as changing a value in a database (using UPDATE or DELETE)
3. Statistical Information: Enforcing who should be allowed access to information derived from underlying databases (Census example).
Kavungya answered the question on May 10, 2019 at 12:32
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