Question: Write an efficient relational algebra expression for the following SQL query: SELECT lastName, firstName, grade FROM Student, Enroll, Class, Faculty WHERE facName - 'Tanaka' AND

Write an efficient relational algebra expression for the following SQL query:

Write an efficient relational algebra expression for the following SQL query: SELECT lastName, firstName, grade FROM Student, Enroll, Class, Faculty WHERE facName - 'Tanaka' AND schedule- 'MThF12' AND Class.classNumber - Enroll.classNumber AND Faculty.facId - Class.facId AND Student.stuId - Enroll.stuId: Explain why your relational algebra expression is efficient

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Please help Consider the following SQL query for the University example: SELECT facName, schedule SELECT facName, schedule FROM Faculty, Class, Enroll, Student WHERE lastName = 'Burns' AND firstName...

please answer the following question. Please provide step by step solution to each problem please 1) 2) 3) 4) Subject: Design Of Database Note: please answer this question with full solutions please...

Consider the following SQL query for the University example: SELECT facName, schedule FROM Faculty, Class, Enroll, Student WHERE lastName = 'Burns' AND firstName = 'Edward' AND Class. classNumber =...

Kindly use the above basic operators to answer the below questions Relational Algebra Give an expression in the relational algebra to express each of the following queries: a. For each relation, what...

Relational Algebra Give an expression in the relational algebra to express each of the following queries: a. For each relation, what is/are the appropriate primary key(s)? Student ( stuId,lastName,...

RELATIONAL ALGEBRA, NOT SQL. PLS DO NOT ANSWER WITH AN SQL QUERY! Instructions Try to answer all the questions using what you have learned in class When writing a query, write the query in a way that...

RELATIONAL ALGEBRA, NOT SQL. PLS DO NOT ANSWER WITH SQL QUERY! Instructions Try to answer all the questions using what you have learned in class When writing a query, write the query in a way that it...

RELATIONAL ALGEBRA, NOT SQL!!! Instructions Try to answer all the questions using what you have learned in class When writing a query, write the query in a way that it would work over all possible...

RELATIONAL ALGEBRA, NOT SQL! Instructions Try to answer all the questions using what you have learned in class When writing a query, write the query in a way that it would work over all possible...

In 2011, Denmark introduced a tax on foods with more than 2.3 percent saturated fats. The goal was to reduce obesity. Is such a tax consistent with a mechanistic view of government?

In the ternary communication channel shown below, a 3 is sent three times more frequently than a 1, and a 2 is sent two times more frequently than a 1. A 1 is observed; what is the conditional...

A positive net present value indicates that a project will: 3 Multiple Choice 1 9 : 5 2 edgenerate more cash than is initially investedgenerate more cash than alternative projects.generate a return...

Kelle Carpet and Trim installs carpet in commercial offices. Peter Kelle has been very concerned with the amount of time it took to complete several recent jobs. So his workers are very unreliable. A...

How do modern Dashboards differ from earlier implementations?

Provide an example of a descending Hierarchy of Data Validation/Lookup Tables.

In a HCM Database, how does applying Relational Design and Third Normal Form rules avoid duplication of Job Title storage in each employee base record?