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One big complain against all major ORM frameworks is about the learning curve. Whether it is NHibernate or EF or something else, they take long time to get started let alone become expert users. In fact, the time it takes to master the frameworks is enough to write our own simple ORM frameworks. In fact, I have done so.


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The log is an append-only data structure, which is much easier to ensure the it is either in its old state, or its new state. Whereas the transaction data pages are all over the place. So there are two differences: (1) the 10MB written to the log could possibly happen in one write, whereas the 10MB written to the data pages may take numerous I/Os to ...



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