让数据更改操作留在with子句中，实际上便强加了一个非常自然的顺序，这样可用于解决冲突。
Keeping data change operations in the WITH clause imposes a very natural order which can be used to solve conflicts.
也可以将经常被访问的数据作为include子句中的列包含在索引中。
Frequently accessed data can also be included within an index as included columns.
可以使用 FROM 子句为 XML 数据指定路径。
You can specify the path for XML data using the XML FROM clause.
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