Pointers for SQL Server parallel upgrades
November 5, 2007[From SearchSQLServer]
When moving from one installation of SQL Server to another, whether it's the same iteration of SQL Server or a higher revision, it helps to do things in parallel. A parallel upgrade means installing the new database product side by side -- either on the same system or on a different one -- with your existing database, and moving or copying data between the two. This sort of operation seems easy enough, but there are a couple of caveats involved, especially when doing a parallel upgrade on the same system.
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