isnotnull()isnotnull()

如果参数不为 null,则返回 trueReturns true if the argument is not null.

语法Syntax

isnotnull([ value ])isnotnull([ value ])

notnull([ value ]) - isnotnull 的别名notnull([ value ]) - alias for isnotnull

示例Example

T | where isnotnull(PossiblyNull) | count

请注意,还可通过其他方法实现这种效果:Notice that there are other ways of achieving this effect:

T | summarize count(PossiblyNull)