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我有一个 Clr 用户定义类型,它接受一串用逗号分隔的值。

转换为这种类型时,我失去了一点精度,我将其缩小到这行代码:

cast(cast(nlinkjt as nvarchar(100)) + ',' +cast(avglrwf as nvarchar(100)) + ',' + cast(avglrwfjt as nvarchar(100)) as dbo.CLRJourneyTime) as clrJT

输出 = 29.9376,5.29633e-005,0.00158559

但原始值是这样的:

nlinkjt = 29.9376097988521  = cast(nlinkjt as nvarchar)  = 29.9376
avglrwf = 5.29632961843163E-05  = cast(avglrwf as nvarchar) = 5.29633e-005
avglrwfjt =  0.00158559449482709  = cast(avglrwfjt as nvarchar) = 0.00158559

如何将浮点数完全转换为字符串?

或者是否有另一种方式来声明一个新的 dbo.CLRJourneyTime 就像你在 .net 中那样:

'new dbo.CLRJourneyTime(nlinkjt , avglrwf , avglrwfjt ) as clrJT'
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1 回答 1

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好的,刚刚发现浮点列无论如何只存储到小数点后 4 位。所以它可能无关紧要。

于 2008-11-05T14:34:37.117 回答