What are the two integrity rules ans the two, Ask an Expert

Programming

What are the two integrity rules?

Ans: The two integrity rules are: Entity Integrity Rule & Referential Integrity Rule.

Entity Integrity Rule - If the attribute A of relation R is a major attribute of R then A cannot agree to take null values.

Referential Integrity Rule - In referential integrity, it is make sure that a value that appears in one relation for a given set of attributes as well appears for a particular set of attributes in another relation.

View complete question

DBMS, Programming

Category:- DBMS
Reference No.:- M9543084

Have any Question?Write your Review or question?

Related Questions in DBMS

Assignmenta restaurant is designing a database to keep

Assignment A restaurant is designing a database to keep track of customer services. A customer is defined as a customer ID, name, address and a telephone number. Customers are served by employees. Each employee is define ...

You are responsible for keeping track of meal expenses for

You are responsible for keeping track of meal expenses for ten employees while at a business lunch to which your employer has invited you to attend. Write an algorithm that inputs the lunch costs for each the ten employe ...

A schools office of the registrar maintains data about the

A School's office of the registrar maintains data about the following entities: a) courses (including course number, title, credits, syllabus and prerequisites), b) course offerings (including course number, year, semest ...

Analytic reportpurpose the purpose of this task is to

Analytic Report: Purpose: The purpose of this task is to provide students with practical experience in working in teams to write a Data Analytical report to provide useful insights, pattern and trends in the chosen/given ...

Instructionsfor decades relational databases remained

Instructions For decades, relational databases remained essentially unchanged; data was segmented into specific chunks for columns, slots, and repositories, also called structured data. However, in this Internet of Thing ...

Students will select a situation or problem from their

Students will select a situation or problem from their company as a course project that can be solved using a database system. Using MS Access, or MS SQL Server Express, students will create a relational database model o ...

Question a suppose you are a marathon runner that can run a

Question : a) Suppose you are a marathon runner that can run a maximum of n miles on a single bottle of water. You are given a map of your marathon route with all the water stations marked. Design an efficient algorithm ...

Question create an erd for the following scenario once you

Question: Create an ERD for the following scenario. Once you submit you will get access to the correct way to create the ERD. Please watch the video and correct any errors in your submission and resubmit. A small company ...

Question sql injection is in the top 10 owasp and common

Question : SQL Injection is in the top 10 OWASP and Common Weakness Enumeration. Using MySQL and PHP, show your own very short and simple application that is vulnerable to this attack. Provide another version that mitiga ...

Question 1 unified communications system eg email

Question: 1. Unified Communications System (e.g., email, conferencing, and messaging) - The local area network is slower than needed, especially for newer, cloud-based applications. The email system needs refurbishment a ...

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

Recent Questions

Ask DBMS Expert