摘要：X city built a new stadium, each day many people visit it and the stats are saved as these columns: id, date, people Please write a query to display t 阅读全文

摘要：The Employee table holds all employees. Every employee has an Id, and there is also a column for the department Id. The Department table holds all dep 阅读全文

摘要：The Trips table holds all taxi trips. Each trip has a unique Id, while Client_Id and Driver_Id are both foreign keys to the Users_Id at the Users tabl 阅读全文