mysql获取表中日期的年月日时分秒
SELECT year(callTheRollTime) from schedule_account 获取年
SELECT month(callTheRollTime) from schedule_account 获取月份
SELECT day(callTheRollTime) from schedule_account 获取日
SELECT date(callTheRollTime) from schedule_account 获取时间 2018-02-27
SELECT hour(callTheRollTime) from schedule_account 获取时
SELECT MINUTE(callTheRollTime) from schedule_account 获取分
SELECT second(callTheRollTime) from schedule_account 获取秒