Hej,有没有人知道如果值为NaN,我可以在ESPER中查看?我想得到一些有效的变量的斜率,但第一个值总是NaN。我想排除这个价值。
value ='NaN'
和
value = NaN
不起作用
答案 0 :(得分:0)
试试INNER JOIN
( SELECT OA.EMPLOYEE_Id, oa.End_Actual_Date
RN= Row_number()over( partition by oa.employee_Id
Order by oa.End_Actual_Date desc )
FROM dbo.OrderAssignment OA
) X ON dbo.EmployeeMaster.Employee_ID = X.Employee_ID
And X.RN =1
。在JVM上,它是“Double.NaN!= Double.NaN”,使“isNaN”成为正确的选择。