逻辑短或，等价于|| Boolean false otherwise.逻辑异或 - Multiply - multiply two or more Decimals and return the result as a Decimal.乘法运算 .
基于4个网页-相关网页
The XMLEXISTS is a Boolean function that takes an XPath expression as input and returns FALSE if the XPath expression returns an empty sequence and TRUE otherwise.
XMLEXISTS是一个Boolean函数，它接受一个XPath表达式作为输入；如果这个XPath表达式返回空序列，它会返回FALSE，否则返回TRUE。
The result returns a Boolean object with value false if the computation is not complete; otherwise, it returns an instance of class object, which contains the result.
如果计算没有完成，结果返回一个值为false的Boolean对象；否则，将返回object类的一个实例，其中包含了计算结果。
应用推荐