Explain how the reduction of maximum cardinalities causes data loss.

Question:

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Database Processing Fundamentals, Design, and Implementation

ISBN: 978-0133876703

14th edition

Authors: David M. Kroenke, David J. Auer

See More Books

Question Posted: Dec 31, 2018 12:51 PM

See More Questions

How are exact minimum and maximum cardinalities depicted in a relationship?
The partial E-R diagram in Figure 4-36 is for a sales order. Assume there is only one Salesperson per Sales Order. a. Specify the maximum cardinalities for each relationship. State your assumptions,...
Create requirements and the ER diagram for a scenario with two entities (both with several attributes) involved in a relationship with exact minimum and maximum cardinalities.
CASE STUDY 1: Facebook, Cambridge Analytica and Trump Scandal: Lessonfor Government, Business, Consumers and Voters. In early 2018, Facebook admitted to mishandling datafrom over 50 million Facebook...
In a period of rising prices, the inventory reported in Kanth Company's statement of financial position is close to the current cost of the inventory. Phelan Company's inventory is considerably below...
The null hypothesis, Ho: = 250, was tested against the alternative hypothesis, Ha: < 250 .A sample of resulted in a calculated test statistic of z = - 1.18 . If s = 22.6, find the value of the...
The labour efficiency variance is the difference between standard hours for the actual output and the actual hours.
Founded in February 2004, Facebook is a social utility that helps people communicate with their friends and family. In just six years, Facebook has acquired more than 500 million active users, of...
BG Corp. has vendors and customers in foreign markets. The company purchases raw materials from and sells finished goods to companies whose functional currency is the euro (). BG keeps its books in...
In this mini-case you will focus on performing one aspect of the test of details on the accounts payable balance ? the search for unrecorded liabilities. To Identify possible unrecorded liabilities...
Using the tables in your answer to Review Question 8.44, show the SQL statements necessary to change the relationship back to 1:N. Assume that the first row in the qualifying rows of the intersection...
Suppose that tables T1 and T2 have a 1:N relationship. Show the SQL statements necessary to fill an intersection T1_T2_INT. Make up your own names for primary and foreign keys.
To compute net sales, sales discounts are added to, and sales returns and allowances are deducted from, gross sales. True-False
What Is Chemical Energy? Definition and Examples
The fundamental concern of computer science is determining what can and cannot be automated. The earliest foundations of what would become computer science predate the invention of the modern digital...
History of the United States
United States History Pearl Harbor attack
Find dy/dx by implicit differentiation for the following. 6x 2 + 5y 2 = 36
Assume that a trial balance is prepared with an account balance of $21,360 listed as $21,630 and an account balance of $1,500 listed as $15,000. Identify the transposition and the slide.
Show the result of Exercise R-10.6, assuming collisions are handled by quadratic probing, up to the point where the method fails.
What would be a good hash code for a vehicle identification number that is a string of numbers and letters of the form 9X9XX99X9XX999999,where a 9 represents a digit and an X represents a letter?
The use of null values in a map is problematic, as there is then no way to differentiate whether a null value returned by the call get(k) represents the legitimate value of an entry (k,null), or...
Diplomatic Security Service provides Airport Transportation and Surveillance Service to Foreign Diplomats in Guyana. The company has two support departments - Information Systems and Equipment...
Q1: A disparity of bargaining power between the parties to a contract may result in unfair terms but a court is not likely to consider the contract unconscionable. Group of answer choices a. True b....
Life Tool Manufacturing has a system in place to recall products that prove to be dangerous at some time after manufacture and distribution. This represents which element of the due care theory?...

Explain how the reduction of maximum cardinalities causes data loss.

Question:

Step by Step Answer:

Anytime you reduce maximum cardinalities you will lose instanc...View the full answer

Database Processing Fundamentals, Design, and Implementation

Students also viewed these Computer science questions