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by radicalbyte
4795 days ago
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As pallinder said, it can be very handy: the IDs can be generated by the nodes, not the db server. Very useful in disconnected environments. Imagine being able to create data on a smartphone whilst sitting on the plane, and not having to do anything messy with ID replacement when you sync with the server in the office. The cost? The keys are larger, and (unless using a sequential algorithm) are poor candidates for clustered keys (because they force page splits). The impact can be rather large (this lead to terrible performance in early versions of Sharepoint). |
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