Mysql

temporary table to be created.

then restart MySQL service.

Mary is a teacher in a middle school and she has a table seat storing students' names and their corresponding seat ids.

Write a SQL query to get the second highest salary from the Employee table.

Given a Weather table, write a SQL query to find all dates' Ids with higher temperature compared to its previous (yesterday's) dates.

Write a SQL query to delete all duplicate email entries in a table named Person, keeping only unique emails based on its smallest Id.

The `Employee` table holds all employees including their managers.

Given a table salary, such as the one below, that has m=male and f=female values.

X city opened a new cinema, many people would like to go to this cinema.