版权声明:原创作品,允许转载,转载时请务必以超链接形式标明文章原始出版、作者信息和本声明。否则将追究法律责任。 http://blog.csdn.net/topmvp - topmvp An indispensable addition to your project management, software engineering or computer science bookshelf,
版权声明:原创作品,允许转载,转载时请务必以超链接形式标明文章原始出版、作者信息和本声明。否则将追究法律责任。 http://blog.csdn.net/topmvp - topmvp Lean software development: applying agile principles to your organization In Lean Software Development
题目: The Employee table holds all employees including their managers. Every employee has an Id, and there is also a column for the manager Id. +----+-------+--------+-----------+| Id | Name | Salar
题目 代码部分一(1936ms) SELECta.Name AS EmployeeFROM Employee a WHERE a.Salary>(SELECT b.Salary FROM Employee b WHERE a.ManagerId=b.Id); 代码部分二(732ms) SELECTa.Name AS EmployeeFROM Employ