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更新しました 2024/12/12
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nanvl
Applies to: Databricks SQL Databricks Runtime
Returns expr1 if it’s not NaN, or expr2 otherwise.
expr1
NaN
expr2
nanvl(expr1, expr2)
expr1: An expression that evaluates to a numeric.
expr2: An expression that evaluates to a numeric.
A DOUBLE.
> SELECT nanvl(cast('NaN' AS DOUBLE), 123); 123.0
coalesce function