问题
When casting a varchar value to MONEY it is rounding the value to the nearest 0.10, how do I prevent this rounding up?
UPDATE: I found the problem. In a subquery, the value is being CAST from varchar to FLOAT and then I was trying to CAST from FLOAT to MONEY.
回答1:
I am not sure i understand your problem.
When looking at the code below
DECLARE @money AS MONEY,
@varchar AS VARCHAR(20)
SET @varchar = '1000.456789'
SELECT CAST(@varchar AS MONEY)
SELECT @money = @varchar
SELECT @money
it gets rounded to the nearest 4th decimal, not the 1st decimal.
回答2:
See this very interesting blog post by Brad Schulz on that exact topic:
Throw Your MONEY Away
He advocates never even using the MONEY datatype for various reasons - interesting and thought inspiring read!
Marc
来源：https://stackoverflow.com/questions/1720454/tsql-casting-to-money-rounds-up