Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask DBMS Expert


Home >> DBMS

Consider the given relational schema:

Sailors(SailorId, SailorName, Rating, Age)
Reserves(SailorId, BoatId, Day)
Boats(BoatId, BoatName, Color)

Deduce the given queries in the Relational Algebra:

Q1. Find out the names of sailors who have reserved the similar color boats as the sailor named ‘John’.

Q2. Find out the colors of boats reserved through sailor ‘John’.

Q3. Find out the names of sailors who encompass reserved a red or a green boat.

Q4. Find out the names of sailors who encompass reserved at least two boats.

Q5. Find out the names of sailors who encompass reserved all boats.

Q6. Find out the names of boats which are reserved by more than one sailor.

DBMS, Programming

  • Category:- DBMS
  • Reference No.:- M911198

Have any Question? 


Related Questions in DBMS

Assignmentthis must be your own unique work you cannot have

Assignment THIS MUST BE YOUR OWN UNIQUE WORK: you cannot have the exact same table as another student and you cannot turn in something you find online!Your work will be checked against a plagiarism database. The format m ...

Restaurants and fast-food chains rely heavily on business

Restaurants and fast-food chains rely heavily on business intelligence to make important decisions. Casinos do as well. Some of the leading restaurants, fast-food chains, and casinos using data warehouses include AFC Ent ...

Assignment business rules and data modelssuppose a local

Assignment: Business Rules and Data Models Suppose a local college has tasked you to develop a database that will keep track of students and the courses that they have taken. In addition to tracking the students and cour ...

Describe a database that might be used in nursing using

Describe a database that might be used in nursing. Using this data, explain the relationship between a field, a record, a table and a database. In addition, what are the advantages of managing database information in Acc ...

Advanced relational database final programming project in

Advanced Relational Database Final Programming Project In this project, you will design a secure database with several tables using good relational database design techniques. Project Objectives: After completing this Pr ...

How up-to-date should data warehouse information

HOW UP-TO-DATE SHOULD DATA WAREHOUSE INFORMATION BE? Information timeliness is a must in a data warehouse-old and obsolete information leads to poor decision making. Below is a list of decision-making processes that peop ...

The use of an access database has become very common over

The use of an Access database has become very common over the last 10 years. Access is the preferred desktop database because server databases such as structured query language (SQL) and others are too complex and are be ...

Assignmentthis assignment consists of two sections a design

Assignment This assignment consists of two sections: a design document and a revised Gantt chart or project plan. You must submit both sections as separate files for the completion of this assignment. Label each file nam ...

Discussion questionsdatabase programs are used to store and

Discussion Questions Database programs are used to store and to retain data for a variety of applications, and are often used in conjunction with Web content to deliver dynamic Web pages. Please respond to all of the fol ...

A task descriptionoverviewyour task is to create and test a

A. Task Description Overview Your task is to create and test a database in MySQL using PhpMyAdmin. You are provided with a scenario and supporting documents, describing the requirements that Southern Cross University may ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen