2015年10月31日
[LeetCode] [SQL]: 182: Duplicate Emails
摘要： 题目：Write a SQL query to find all duplicate emails in a table namedPerson.+----+---------+| Id | Email |+----+---------+| 1 | a@b.com || 2 | c@d.co... 阅读全文
posted @ 2015-10-31 19:56 savageclc26 阅读(119) 评论(0) 推荐(0)
[LeetCode] [SQL]: 181: Employees Earning More Than Their Managers
摘要： 题目：TheEmployeetable holds all employees including their managers. Every employee has an Id, and there is also a column for the manager Id.+----+------... 阅读全文
posted @ 2015-10-31 19:39 savageclc26 阅读(165) 评论(0) 推荐(0)