如何在U-SQL中的if else子句中使用两个参数

Question

我想在 U-SQL 中的if else条件中对两个不同的列使用Null检查和0检查。但它给我带来了错误。我猜它没有采用Null检查表达式来检查0值。

@ctetemp=
SELECT 
    gvo.TcontainerUnitno,
    gvo.TcontainerETD,

   (gvo.TlotMeasurement IS NULL || cte1.SumTlotMeasurement== 0 ) ? 

 ( 1.0 / (cte1.NumberOfShipments == 0 ? 1 : cte1.NumberOfShipments)) :

 (gvo.TlotMeasurement / cte1.SumTlotMeasurement) AS ConVolPct

FROM @GvoFinal AS gvo

INNER JOIN @cte AS cte1

ON 
gvo.Tcontainerunitno = cte1.UnitNumber

AND gvo.TcontainerETD = cte1.TcontainerETD

Code

欣赏是否快速回答。

Answer 1

那里需要一个有效的.NET表达式。所以试试这个：

(gvo.TlotMeasurement == null|| cte1.SumTlotMeasurement== 0 ) ?     
 ( 1.0 / (cte1.NumberOfShipments == 0 ? 1 : cte1.NumberOfShipments)) :    
 (gvo.TlotMeasurement / cte1.SumTlotMeasurement) AS ConVolPct