This is a big reason why data warehouses typically don't work against the live data, but export daily roll-ups instead.
这是一个很大的原因数据仓库对实时数据通常不工作,而是每天出口卷帘窗。
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As a result, hospitals will begin unwinding the money-losing practices they have been acquiring over the last five years, similar to the 1990s when the physician practice management roll-ups failed.