Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Computer Engineering Expert

problem1. describe in brief the three parts of Relational Model.

problem2. Illustrate the following terms:

i. Entity

ii. Attribute

iii. Relationship

iv. Primary Key

v. Foreign Key

vi. Candidate Key

vii. Surrogate Key

problem3. The term integrity refers to accuracy or correctness of data in database. Illustrate the following terms:

i) Domain Integrity

ii) Entity Integrity

iii) Referential Integrity

problem4. What do you understand by the term recursive relationship? Give an instance of a many to many recursive relationships.

Computer Engineering, Engineering

  • Category:- Computer Engineering
  • Reference No.:- M95824

Have any Question? 


Related Questions in Computer Engineering

Powerpoint presentationnote the accepted microsoft office

PowerPoint Presentation Note: The accepted Microsoft Office versions for this assignment are Microsoft Office 2013 (for PC) and Microsoft Office for Mac 2011 (for Macintosh). Students may use a more recent version if ava ...

Calculate the cpi for the system listed above assuming that

Calculate the CPI for the system listed above assuming that there are no accesses to I/O. What is the CPI if the VMM performance impact doubles? If it is cut in half? If a virtual machine software company wishes to obtai ...

Suppose one wishes to confirm that none of the files in the

Suppose one wishes to confirm that none of the files in the directory /usr/spool/lpd are worldreadable. a. What would the fourth field of the tripwire database contain? b. What would the second field of the RIACS databas ...

Assume that our network may corrupt packets but it never

Assume that our network may corrupt packets, but it never loses or duplicates a packet. We are also concerned about flow control. We do not want the sender to overwhelm the receiver with packets. Design an FSM of a new p ...

Compare and discuss ipv4 and ipv6 in terms of their

Compare and discuss IPv4 and IPv6 in terms of their security advantages on the Internet.

First show the block organization of the 16-bit carry save

First, show the block organization of the 16-bit carry save adders to add these 16 terms, as shown in Figure B.14.1. Assume that the time delay through each 1-bit adder is 2T. Calculate the time of adding four 4-bit numb ...

1 implement a new version of the map adt from section 32 to

1. Implement a new version of the Map ADT from Section 3.2 to use a sorted list and the binary search algorithm. 2. The implementation of the Sparse Matrix ADT from Chapter 4 can be improved by storing the MatrixElement ...

1 how many invalid unused code sequences can we have in

1. How many invalid (unused) code sequences can we have in 5B/6B encoding? How many in 3B/4B encoding? 2. What is the result of scrambling the sequence 11100000000000 using each of the following scrambling techniques? As ...

Verify that eulers theorem holds in zm m 69 for all

Verify that Euler's Theorem holds in Zm, m = 6,9, for all elements a for which gcd(a,m) = 1. Also verify that the theorem does not hold for elements a for which gcd(a,m) ≠ 1. For the affine cipher in Chapter 1 the multip ...

Your company is debating transferring all of their

Your company is debating transferring all of their information to a Cloud storage provider. The CFO feels this move is a big cash savings plan, one that could save the company a lot of money. The CIO feels the risk is to ...

  • 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