leetcode

Table: RequestAccepted+----------------+---------+| Column Name | Type |+----------------+---------+| requester_id | int || accepter_id | int || accept_date | date |+----------------+---------+(requester_id, accepter_id) is the primary key (combination of columns with unique values) for this table.This table contains the ID of the user who sent the request, the ID of the..

Table: Customer+---------------+---------+| Column Name | Type |+---------------+---------+| customer_id | int || name | varchar || visited_on | date || amount | int |+---------------+---------+In SQL,(customer_id, visited_on) is the primary key for this table.This table contains data about customer transactions in a restaurant.visited_on is the date on which..

Table: Movies+---------------+---------+| Column Name | Type |+---------------+---------+| movie_id | int || title | varchar |+---------------+---------+movie_id is the primary key (column with unique values) for this table.title is the name of the movie. Table: Users+---------------+---------+| Column Name | Type |+---------------+---------+| user_id | int |..

Table: Seat+-------------+---------+| Column Name | Type |+-------------+---------+| id | int || student | varchar |+-------------+---------+id is the primary key (unique value) column for this table.Each row of this table indicates the name and the ID of a student.The ID sequence always starts from 1 and increments continuously. Write a solution to swap the seat id of every ..

Table: Employees+-------------+----------+| Column Name | Type |+-------------+----------+| employee_id | int || name | varchar || manager_id | int || salary | int |+-------------+----------+In SQL, employee_id is the primary key for this table.This table contains information about the employees, their salary, and the ID of their manager. Some employees do not ha..

Table: Accounts+-------------+------+| Column Name | Type |+-------------+------+| account_id | int || income | int |+-------------+------+account_id is the primary key (column with unique values) for this table.Each row contains information about the monthly income for one bank account. Write a solution to calculate the number of bank accounts for each salary category. The salary catego..