Snapshots VS Materiazlized Views

Hello All,

Sun 5.8 Oracle 8.1.7.2
At a client site the developers are building an application that runs against several data-marts. The marts have tables with many 16+ million record tables. I have explained to them that read-only materialized views would help speed up some of their queries.

The local developers are pushing the use of snapshots, I would like to use materialized views. I do not have much experience with either one. I have been unable to find a good comparison of snapshots vs. materialized views. When should one be used over the other? What are the dvantages/disadvantages of either one in this situation? I know that query rewrite only works with MVs, but that isn't a factor in this situation.

Thank you for any information you can provide.

Todd Carlson
Oracle Database Administrator
Tripos, Inc.
(314) 647-8837 Ext.3246

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