Solution-List all the foreign key constraints among these

List all the foreign key constraints among these relations

Assignment Help Database Management System

Reference no: EM13507629

1.Consider the relations Students, Faculty, Courses, Rooms, Enrolled, Teaches, and Meets In de?ned in Section 1.5.2.

1a. List all the foreign key constraints among these relations.

1b. Give an example of a (plausible) constraint involving one or more of these relations that is not a primary key or foreign key constraint.

2. sid name login age gpa

53831 Madayan madayan@musi 11 1.8

53832 Guldu guldu@music 12 2.0

Figure Students with age < 18 on Instance S

Consider the SQL query whose answer is shown in Figure

1. Modify this query so that only the login column is included in the answer.

2. If the clause WHERE S.gpa >= 2 is added to the original query, what is the set of tuples in the answer?

Reference no: EM13507629

Questions Cloud

Compute the molarity of a solution by dissolving : Calculate the molarity of a solution by dissolving 0.710 grams of Na2SO4 in enough water to form exactly 900 mL of solution

Find how much heat energy is exhausted into the room : 150ml of water at 20.0C is placed in the freezer compartment of a refrigerator with a coefficient of performance of 6.00. How much heat energy is exhausted into the room

Mcdonald corporate strategy : How the product positioning is aligned with McDonald's corporate strategy

Determine how long does it take him to reach the bottom : A skier is gliding along at 3.0 m/s on horizontal, frictionless snow. He suddenly starts down a 10° incline. His speed at the bottom is 15 m/s. How long does it take him to reach the bottom

List all the foreign key constraints among these relations : Give an example of a (plausible) constraint involving one or more of these relations that is not a primary key or foreign key constraint.

Markets in developed economies are approaching saturation : Markets in developed economies are approaching saturation level.

Explain blood glucose concentration back to normal range : Calculate the volume of fluid a patient would need to receive to lower their blood glucose concentration back to normal range. Assume the body has no other way to lower blood glucose concentration.

What is the bearings impact velocity : Ball bearings are made by letting spherical drops of molten metal fall inside a talll tower-called a shot tower- and solidify as they fall. What is the bearing's impact velocity

Find who gets to san francisco first : Alan leaves Los Angeles at 8:00 a.m to drive San Francisco, 400 mi away. He travels at a steady 50 mph. find Who gets to San Francisco first

User Account

All Pages

List all the foreign key constraints among these relations

Reference no: EM13507629

Reference no: EM13507629

Questions Cloud

Reviews

Write a Review

Database Management System Questions & Answers

Knowledge and data warehousing

Design a database schema

Entity-relationship diagram

Implement a database of courses and students for a school

Prepare the e-r diagram for the movie database

Design relation schemas for the entire database

Prepare the relational schema for database

Data modeling and normalization

Use cases perform a requirements analysis for the case study

Knowledge and data warehousing

Stack and queue data structure

Practice on topic of normalization

Assured A++ Grade

Academics

Major Subjects

Majors

Get In Touch

TERMS & POLICIES

HELP & SUPPORT