mysql> select '2017-02-25 05:04:30' + interval 2 days;error 1064 (42000): you have an error in your sql syntax; check themanual that corresponds to your mysql server version for the rightsyntax to use near 'days' at line 1
以上就是为什么mysql使用7天2小时这样的间隔而不是7天2小时？的详细内容。