Question: Explain how the foreign key constraint maintains referential integrity between two tables when the database is inserted, updated, or deleted. What are the different 'referential

Explain how the foreign key constraint maintains referential integrity between two tables when the database is inserted, updated, or deleted. What are the different 'referential actions' (foreign key rules) that can be specified?

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

When an SQL operation attempts to change data in such a way that referential integrity becomes compromised a foreign key or referential constraint could be violated The database manager handles these ... View full answer

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!

The owner of Colonial Adventure Tours would like you to complete the following tasks to help him maintain his database. In the following exercises, you will use the data in the Colonial Adventure...

Project 1 provides experience with creating ERDs and writing CREATE TABLE statements for the Expense Reporting database at XCorp, a fast-growing web consulting company. You will design an ER Diagram...

The NCAA (National Collegiate Athletic Association) wants to develop a database to keep track of information about college basketball. Each university team belongs to only one conference (e.g., the...

The primary key of each relation is in bold and underlined. You are identifying the missing foreign keys and the referential integrity actions to connect these six relations into a relational...

needed a bit of help on the ones I got wrong or why I got them wrong I wasnt given an ER diagram to do this. this was all the information I received. Question 1 0/2 points In order to be used as a...

One of the main goals in both the previous CREATE TABLE Assignments and this INSERT INTO Assignment is to reinforce the concept of referential integrity. These two linked assignments should make sure...

Student can follow the Links under the Text Header named "Tutorial Videos for the INSERT INTO Pizza Delivery Assignment" in the Module to participate in this assignment. One of the main goals in both...

Hello, below I have a database which I've created below and also all of the foreign key constraints. I need help with two things: One, I can't seem to see the logic on which tables to drop first and...

CIS-336: Lab7: Working with Views LAB OVERVIEW Lab 7 will introduce the concept of database views. This lab may be completed using either DeVrys Omnymbus EDUPE-APP lab environment, or a local copy of...

A. Lab # : BSBA BIS245A-2 B. Lab 2 of 7 : Skills Development in Visio; Creation of MS Access Database C. Lab Overview Scenario / Summary COs: 1. Given a business situation in which managers require...

Discuss some of the examples of poor quality in information technology projects presented in the What Went Wrong? section. Could most of these problems have been avoided? Why do you think there are...

With all of the transactions for the October-December 2021 period recorded, the company is facing their first year-end at December 31. The following additional facts are collected for use in making...

average rate of change of g ( x ) = 9 x 3 4 x 4 an interval ( - 4 , 4 ]

If a reaction is insensitive to pressure, prove that it is also insensitive to dilution effects at a given T.

How will our notions of intellectual property change if computers become capable of creative work?

Suppose you are considering investing in a Telus Corp. corporate bond with a $15 000 face value maturing on July 23, 2024. The bonds coupon or bond rate is 5.05 percent and interest is paid...

Use Thevenins Theorem to find Vo in the network shown 12V 2 2 2KKo Io

Repeat Problem 3 but make the rst column of A contain the values 3x and the second column contain the values 5x - 20. Problem 3 Use MATLAB to create a vector x having six values between 0 and 10...

Which is an advantage of an outline?Uses shapes to indicate various ideas.Provides a summary of key points, ordered hierarchically, to discuss with colleagues or managers.Looks impressive.Can be used...

What is an OODBMS?

What are two disadvantages of updating replicated data in a distributed database?

For the following exercises, you will address problems and answer questions from the Solmaris Condominium Group staff. You do not use the Solmaris database for any of these exercises. 1. The log...

What are the alternative methods used internationally to present fixed assets on the balance sheet subsequent to acquisition?

What are the different ways in which financial statements differ across countries?

What are the major problems caused by worldwide accounting diversity for international portfolio investment?