LeetCode 595. Big Countries

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LeetCode 595. Big Countries

LeetCode 595. Big Countries (大的国家)

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…

595. Big Countries --- SQL related from leetcode

[LeetCode] 595. Big Countries_Easy tag: SQL

595. Big Countries

All LeetCode Questions List 题目汇总

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…

Leetcode中的SQL题目练习（一）

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…

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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…

Union比or快 Using UNION is faster when it comes to cases like scan two different column。

problem: 595. Big Countries A country is big if it has an area of bigger than 3 million square km or a population of more than 25 million. Write a SQL solution to output big countries' name, population and area. Two obvious solutions: #OR SELECT name…