What's your opinion on using UUIDs as database row identifiers, particularly in web apps?

Question

I\'ve always preferred to use long integers as primary keys in databases, for simplicity and (assumed) speed. But when using a REST or Rails-like URL scheme for object insta

Answer 1

We use GUIDs as primary keys for all our tables as it doubles as the RowGUID for MS SQL Server Replication. Makes it very easy when the client suddenly opens an office in another part of the world...