在 SQL Server 中截断(不是四舍五入)小数位

2022-01-31 00:00:00 sql rounding tsql sql-server

我正在尝试确定在不四舍五入的情况下截断或删除 SQL 中多余小数位的最佳方法.例如:

I'm trying to determine the best way to truncate or drop extra decimal places in SQL without rounding. For example:

declare @value decimal(18,2) set @value = 123.456

这会自动将 @value 舍入为 123.46，这在大多数情况下都很好.但是，对于这个项目，我不需要那个.有没有一种简单的方法来截断我不需要的小数?我知道我可以使用 left() 函数并转换回小数.还有其他方法吗?

This will automatically round @value to be 123.46, which is good in most cases. However, for this project, I don't need that. Is there a simple way to truncate the decimals I don't need? I know I can use the left() function and convert back to a decimal. Are there any other ways?

推荐答案

select round(123.456, 2, 1)

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