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on 4/16/2011 4:33 PM
A discussion that crops up from time to time is whether primary keys should be UUIDs or simple auto-incrementing integers. There are pros and cons on both sides. UUIDs provide universal uniqueness which allows data to be stored across multiple databases, merged and so on. Auto-increment primary keys are easy to work with and efficient for indexing - but cause problems when you need to deal with data created across multiple databases, such as data migration and merging. UUIDs, as 36 character strings, take [...]
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