Why To Maintain A Copy Of Data In Database Buffer Cache?

1.	Why To Maintain A Copy Of Data In Database Buffer Cache?
Answer» When the same query is ran by same or different user, data can be PICKED from BUFFER CACHE THUS AVOIDING I/O and improving performance. When the same query is ran by same or different user, data can be picked from buffer cache thus avoiding I/O and improving performance.

Answer»

When the same query is ran by same or different user, data can be PICKED from BUFFER CACHE THUS AVOIDING I/O and improving performance.

When the same query is ran by same or different user, data can be picked from buffer cache thus avoiding I/O and improving performance.

Discussion