SQL 函数日期和时间函数NOW在本页NOWReturns the current date and time.SyntaxNOW()Return TypeDatetime object, returns date and time in “YYYY-MM-DD hh:mm:ss.ffffff” format.ExamplesSELECT NOW();+----------------------------+| NOW() |+----------------------------+| 2022-10-17 08:13:58.751449 |+----------------------------+