cache. Data is read from the disk into a free buffer block (cache in ram).
Then it is sent to the client as requested. Oracle uses a LRU algorithium
to determine what gets aged out of the cache for new items. The idea is to
cache recently or frequently assessed data so it does not have to go to disk
to do it. It makes it faster.(ram read is faster than disk io)
Jim
"los" <los123_at_yahoo.com> wrote in message
news:xb0U9.4937$Dq.509089_at_newsread2.prod.itd.earthlink.net...
> I'm studying Oracle and am a bit confused with a term being thrown around
in
> the book I'm using. What is a buffer? What are buffer blocks, modified
> buffers and what is the buffer cache, are some of these one in the same?
> Thanks in advance.
>
>
Received on Sat Jan 11 2003 - 16:15:48 CST
