摘要：
Source: https://leetcode.com/problems/duplicate-emails/#/descriptionDescription: Write a SQL query to find all duplicate emails in a table named Perso 阅读全文
摘要：
Source: https://leetcode.com/problems/employees-earning-more-than-their-managers/#/descriptionDescription: The Employee table holds all employees incl 阅读全文
摘要：
Source: https://leetcode.com/problems/consecutive-numbers/#/descriptionDescription: Write a SQL query to find all numbers that appear at least three t 阅读全文
摘要：
Source: https://leetcode.com/problems/rank-scores/#/description Description: Write a SQL query to rank scores. If there is a tie between two scores, b 阅读全文
摘要：
Source: https://leetcode.com/problems/nth-highest-salary/#/descriptionDescription: Write a SQL query to get the nth highest salary from the Employee t 阅读全文
摘要：
Source: https://leetcode.com/problems/second-highest-salary/#/description Description: Write a SQL query to get the second highest salary from the Emp 阅读全文
摘要：
Source: https://leetcode.com/problems/combine-two-tables/#/description Description: Table: Person Table: Address Write a SQL query for a report that p 阅读全文