Consider the following relational schema and answer the following questions.Employee (Employee_Id, First_Name, Last_Name, Email, Phone_Number, Hire_Date, Job_Id, Salary, Commission_Pct, Manager_Id, Department_Id)Write a query to get the difference between the highest and lowest salaries. Write a query to find the manager ID and the salary of the lowest-paid employee for that manager. Write a query to get the department ID and the total salary payable in each department. Write a query to get the total salary, maximum, minimum, average salary of employees (job ID wise), for department ID 90 only. Write a query to get the average salary for all departments employing more than 10 employees.

SQL (Structured Query Language) is used for managing and manipulating relational databases. SQL…

Answered: Consider the following relational…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Consider the following relational schema and answer the following questions.

Employee (Employee_Id, First_Name, Last_Name, Email, Phone_Number, Hire_Date, Job_Id, Salary, Commission_Pct, Manager_Id, Department_Id)

Write a query to get the difference between the highest and lowest salaries.

Write a query to find the manager ID and the salary of the lowest-paid employee for that manager.

Write a query to get the department ID and the total salary payable in each department.

Write a query to get the total salary, maximum, minimum, average salary of employees (job ID wise), for department ID 90 only.

Write a query to get the average salary for all departments employing more than 10 employees.

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Consider the following relational schema and answer the following questions. Employee (Employee_Id, First_Name, Last_Name, Email, Phone_Number, Hire_Date, Job_Id, Salary, Commission_Pct, Manager_Id, Department_Id)