595. Big Countries There is a table World +-----------------+------------+------------+--------------+---------------+ | name | continent | area | population | gdp | +-----------------+------------+------------+--------------+---------------+ | Afgha…

There is a table World +-----------------+------------+------------+--------------+---------------+ | name | continent | area | population | gdp | +-----------------+------------+------------+--------------+---------------+ | Afghanistan | Asia | 652…

题目标签: 题目给了我们一个 world table,让我们找出 面积大于3 million square km 或者 人口大于 25 million. 直接用两个条件搜索. Java Solution: Runtime:  257 ms, faster than 37 % Memory Usage: N/A 完成日期:07/02/2019 关键点:n/a # Write your MySQL query statement below SELECT name, population, area…

There is a table World +-----------------+------------+------------+--------------+---------------+ | name | continent | area | population | gdp | +-----------------+------------+------------+--------------+---------------+ | Afghanistan | Asia | 652…

178. 分数排名 SQL架构 编写一个 SQL 查询来实现分数排名.如果两个分数相同,则两个分数排名(Rank)相同.请注意,平分后的下一个名次应该是下一个连续的整数值.换句话说,名次之间不应该有"间隔". +----+-------+ | Id | Score | +----+-------+ | 1 | 3.50 | | 2 | 3.65 | | 3 | 4.00 | | 4 | 3.85 | | 5 | 4.00 | | 6 | 3.65 | +----+-------+ 例如…

177. 第N高的薪水 编写一个 SQL 查询,获取 Employee 表中第 n 高的薪水(Salary). +----+--------+ | Id | Salary | +----+--------+ | 1 | 100 | | 2 | 200 | | 3 | 300 | +----+--------+ 例如上述 Employee 表,n = 2 时,应返回第二高的薪水 200.如果不存在第 n 高的薪水,那么查询应返回 null. +------------------------+ |…

176. 第二高的薪水 SQL架构 编写一个 SQL 查询,获取 Employee 表中第二高的薪水(Salary) . +----+--------+ | Id | Salary | +----+--------+ | 1 | 100 | | 2 | 200 | | 3 | 300 | +----+--------+ 例如上述 Employee 表,SQL查询应该返回 200 作为第二高的薪水.如果不存在第二高的薪水,那么查询应返回 null. +---------------------+…

595. Big Countries https://leetcode.com/problems/big-countries/description/ Description name continent area population gdp Afghanistan Asia 652230 25500100 20343000 Albania Europe 28748 2831741 12960000 Algeria Africa 2381741 37100000 188681000 Andor…

只用于个人的学习和总结. 178. Rank Scores 一.表信息 二.题目信息 对上表中的成绩由高到低排序,并列出排名.当两个人获得相同分数时,取并列名次,且名词中无断档. Write a SQL query to rank scores. If there is a tie between two scores, both should have the same ranking. Note that after a tie, the next ranking number should…

All LeetCode Questions List(Part of Answers, still updating) 题目汇总及部分答案(持续更新中) Leetcode problems classified by company 题目按公司分类(Last updated: October 2, 2017) .   Top Interview Questions # Title Difficulty Acceptance 1 Two Sum Medium 17.70% 2 Add Two N…