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11.3.1 定期分析表：.......................................................................................................50
11.3.2 使用 optimize table ：...........................................................................................50
11.4 常用 SQL 的优化............................................................................................................ 51
11.4.1 大批量插入数据：...............................................................................................51
11.4.2 优化 insert 语句：................................................................................................52
11.4.3 优化 group by 语句：.......................................................................................... 52
11.4.4 优化 order by 语句：........................................................................................... 52
11.4.5 优化 join 语句：...................................................................................................53
11.4.6 mysql 如何优化 or 条件：................................................................................... 54
11.4.7 查询优先还是更新（insert、update、delete）优先：..................................... 54
11.4.8 使用 SQL 提示：................................................................................................. 55
11.5 其他优化措施..................................................................................................................56
第 12 章 优化数据库对象...............................................................................................................56
12.1 优化表的数据类型..........................................................................................................56
12.2 通过拆分，提高表的访问效率..................................................................................... 57
12.3 逆规范化..........................................................................................................................57
12.4 使用冗余统计表..............................................................................................................57
12.5 选择更合适的表类型......................................................................................................58
第 13 章 锁问题...............................................................................................................................58
13.1 获取锁等待情况..............................................................................................................58
13.2 什么情况下使用表锁......................................................................................................59
13.3 什么情况下使用行锁......................................................................................................59
13.4 insert …select …带来的问题..........................................................................................60
13.5 next-key 锁对并发插入的影响....................................................................................... 61
13.6 隔离级别对并发插入的影响..........................................................................................61
13.7 如何减少锁冲突..............................................................................................................62
第 14 章 优化 Mysql Server............................................................................................................63
14.1 查看 Mysql server 当前参数...........................................................................................63
14.2 影响 Mysql 性能的重要参数......................................................................................... 63
14.2.1 key_buffer_size 的设置......................................................................................... 63
