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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)

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)

Database System Concepts
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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  1. 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)

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

 

 

 

 

 

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

 

 

 

 

 

 

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

 

 

 

 

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

 

 

 

 

 

 

 

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

 

 

 

 

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