https://blog.youkuaiyun.com/Rick100zh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/Rick100/article/details/611620https://blog.youkuaiyun.com/Rick100/article/details/611620Rick100Mon, 27 Feb 2006 20:01:00 +0800https://blog.youkuaiyun.com/Rick100/article/details/610633https://blog.youkuaiyun.com/Rick100/article/details/610633Rick100Sun, 26 Feb 2006 23:27:00 +0800.READ UNCOMMITTED    效率高,但可能会有脏数据(修改数据时不排他读);2>.READ COMMITTED       避免了脏数据(修改数据时排他读);3>. REPEATABLE READ      对满足条件的数据行集进行]]>