Problem
• Describe the various functions performed by a database administrator.
• If you want to know what Murphy's Law looks like to a database administrator, think database recovery. Inevitably, databases are damaged or lost because of some system problem that may be caused by human errors, hardware failure, invalid data, program errors, computer viruses, network failures, conflicting transactions, or natural catastrophes. It is the responsibility of the DBA to ensure all critical data in the database are protected and can be recovered in the event of a loss. To learn more about database recovery, join your classmates in this discussion on recovery techniques.