返回指定时间点的实际值(FOR SYSTEM TIME AS OF date time)
返回一个表,其中包含过去指定时间点的实际值(当前值)的行。
SELECT * FROM Employee
FOR SYSTEM_TIME AS OF '2016-08-06 08:32:37.91'
返回一个表,其中包含过去指定时间点的实际值(当前值)的行。
SELECT * FROM Employee
FOR SYSTEM_TIME AS OF '2016-08-06 08:32:37.91'