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Nov 16, 2012 at 19:06 comment added KeithS This. Also, referential integrity becomes a nightmare; you can't specify a foreign key to "the one record in this table with this not-unique key that is not marked deleted". You get around that by persisting the data for the copy of a record that is about to be updated into a different table, before updating this "working copy" with the new data, but you still have massive data bloat to deal with.
Nov 16, 2012 at 18:59 history answered System Down CC BY-SA 3.0