Rounding milliseconds in T-SQL

问题

In SQL Server 2008, I have the below column of type DateTime in a table.

+-------------------------+
| LTime                   |
+-------------------------+
| 2009-12-07 10:40:21.893 |
| 2009-12-07 10:42:18.173 |
+-------------------------+

From the above column, I want to select the datetime and round off the milliseconds, in order to get the below output

+---------------------+
| LTime               |
+---------------------+
| 2009-12-07 10:40:22 |
| 2009-12-07 10:42:18 |
+---------------------+

Greatly appreciate your help in advance.

回答1:

Does

SELECT CAST('2009-12-07 10:40:21.893' AS DATETIME2(0)), 
       CAST('2009-12-07 10:42:18.173' AS DATETIME2(0))

Do what you need?

来源：https://stackoverflow.com/questions/5862822/rounding-milliseconds-in-t-sql