Thanks, everyone, for your replies. Especially for the information about GO, which I didn't know.
I guess for now, I will make this a longer-term task with a checklist for modifying the code one database at a time. It would be nice to have this done before migrating but completing all of it may not be possible given my schedule.
Thanks again,
webrunner
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A SQL query walks into a bar and sees two tables. He walks up to them and asks, "Can I join you?"
Ref.: http://tkyte.blogspot.com/2009/02/sql-joke.html