The XMLEXISTS predicate in the original query got converted into a complex expression that can be referred to using the number Q1.
初始查询中的XMLEXISTS谓词被转换为一个复杂表达式，可以通过编号Q 1引用。
Coming up with a regular expression that asserts a certain number range on a floating point number would indeed be very complex.
一个正则表达式，断言一定数量范围在一个浮点数真的是非常复杂的。
应用推荐