mysql数据库中吧时分秒换算成秒的函数TIME_TO_SEC()2022-10-01 22:24:59 表 tab id time 1 00:01:30 比如 00:01:30 SELECT TIME_TO_SEC(time) FROM tab where id=1 得到的结果就是 90 mysql数据库中吧时分秒换算成秒的函数TIME_TO_SEC()上一篇：解决数据库未打开，仅允许在固定表/视图中查询的问题下一篇：配置c3p0连接池出现错误：java.sql.SQLException: An attempt by a client to checkout a Connection has timed