目录面试题：innodb与myisam的区别。一、简单查询二、限定查询三、排序查询四、多表查询五、连接查询六、分组查询七、统计查询八、子查询where 子查询 小贴士： from 子查询九、分页查询 事务mysql数
In C (or C++ for that matter), pointers are special if they have the value zero: I am adviced to set pointers to zero after freeing their memory, because it means freeing the pointer again isn\'t dang
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