酒店电子锁管理，包括界面编程、数据库操作、串口操作 -Hotel electronic lock management, including programming interface, database operation, serial operation

分析MySQL5的慢查询日志，统计相同语句的执行次数、平均查询时间、平均上锁时间。对于MySQL的性能调教有一定用途。绝对原创。 附件里input.txt为slow-query原始文件，output.txt为输出格式-MySQL5 slow query log analysis, statistics the number of times the same statement, the average query time, the average lock time. MySQL per

Mysql，innodb引擎，记录锁测试-Mysql, innodb engine, record locking test

淘宝大神总结的十大经典案例，1.InnoDB表如何设计主键索引 2.字符串索引隐式转换 3.表数据被莫名清空 4.InnoDB表更新锁问题等等。-Taobao great summary of the top ten classic case of God, 1.InnoDB table on how to design the primary key index 2. 3. string index implicit conversion table data is inexplicably