One
of the biggest responsibilities of a DBA is to ensure that Oracle database is
tuned properly.
Oracle RDBMS is highly tunable and allows database to be
monitored and adjusted to increase its performance.
One
should do performance tuning for the following reasons
The speed of computing might be wasting valuable human time (users waiting for
response)
Enable your system to keep up with the speed business is conducted
and Optimize hardware usage to save money (companies are spending millions on
hardware)