Repeat this over hundreds or even thousands of page views each day, and your servers and applications will be executing far more queries than are necessary to show the page contents.
每天对数百甚至数千的的页面查看重复此过程，那么您的服务器和应用程序执行的查询要远远多于为了显示页面内容所需执行的查询。
Type Trees can be automatically generated from databases, queries, stored procedures, and views.
类型树可以从数据库、查询、存储过程或视图中自动生成。
Advanced features, such as joins across several XML queries, views with XML types, and schema validation are supported.
同时还支持各种高级功能，如跨多个XML查询的联合，使用xml类型的视图和模式验证。
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