Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
Applies to: 
Databricks SQL Databricks Runtime
Returns true if expr is NaN.
Syntax
isnan(expr)
Arguments
expr: An expression that evaluates to a numeric.
Returns
A BOOLEAN.
Examples
> SELECT isnan(cast('NaN' as double));
true
> SELECT isnan(7);
false