Cost analyzing relies too much on accounting method and its regulation, and businesses don't analyze the cost behavior which is not included in the accounting regulations.
成本分析过分依赖于会计方法和制度,而对没有纳入会计核算范围的成本行为缺乏分析等等。
This allows the query optimizer to do a better job of analyzing the complex query, as the statistics can now closely reflect the actual cost.
这使得查询优化器可以更有效地分析复杂的查询,因为现在统计信息近似地反映实际成本。
Deep Web technologies hold the promise of achieving similar benefits at a much lower cost, by automating the process of analyzing database structures and cross-referencing the results.
通过分析数据库结构的自动化以及搜索结果的相互参照,深层网络技术有希望以低得多的成本实现类似语义网的功用。
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