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更新しました 2024/11/04
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isnan
Applies to: Databricks SQL Databricks Runtime
Returns true if expr is NaN.
true
expr
NaN
isnan(expr)
expr: An expression that evaluates to a numeric.
A BOOLEAN.
> SELECT isnan(cast('NaN' as double)); true > SELECT isnan(7); false
isnotnull function
isnull function