以下 SQL Server 声明的含义是什么:datetime2(7)?
在 SQL Server 查询中,有:datetime2(7)
.
我知道datetime2
,但我不明白(7)
.
Inside a SQL Server query, there is: datetime2(7)
.
I know datetime2
, but I don't understand (7)
.
你能解释一下(7)
的含义吗?
Can you explain the meaning of (7)
?
推荐答案
datetime2 [ (fractional seconds precision) ]
根据 MSDN 文档,这是小数秒精度.
It's the fractional seconds precision according to the MSDN documentation.
http://msdn.microsoft.com/en-us/library/bb677335.aspx一个>
这是微软4的例子:
DECLARE @datetime2 datetime2(4) = '12-10-25 12:32:10.1234';
所以我假设 7 是:
DECLARE @datetime2 datetime2(7) = '12-10-25 12:32:10.1234567';
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