Oracle-L: Re: Snapshots VS Materialized Views

From: <tday6_at_csc.com>
Date: Thu, 14 Mar 2002 08:28:42 -0800
Message-ID: <F001.0042964F.20020314082842@fatcity.com>

Different names for the same thing. Snapshots is being phased out and the new terminology is materialized views.

                                                                                           
                    Todd Carlson                                                           
                    <tcarlson            To:     Multiple recipients of list ORACLE-L      
                    @tripos.com>         <ORACLE-L_at_fatcity.com>                            
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                                         Subject:     Snapshots VS Materiazlized Views     
                                                                                           
                    03/14/2002                                                             
                    10:23 AM                                                               
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                    ORACLE-L

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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Received on Thu Mar 14 2002 - 10:28:42 CST