Question: In the extended entity - relationship model ( EERM ) , which of the following statements best describes the completeness constraint? a . The completeness

In the extended entity-relationship model (EERM), which of the following statements best describes the completeness constraint?
a. The completeness constraint specifies whether each entity supertype occurrence must also be a member of at least one subtype.
b. Partial completeness constraint means that every supertype occurrence is a member of a subtype.
c. Total completeness constraint means that every subtype occurrence must be a member of at least one supertype.
d. The completeness constraint specifies whether each entity subtype occurrence must also be a member of at least one supertype.
In the extended entity-relationship model (EERM), which of the following statements

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
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!

Q:

In the extended entity - relationship model ( EERM ) , which of the following statements best describes the completeness constraint? a . The completeness constraint specifies whether each entity...

Q:

Study the Sample Application Using Object-Relational Features of Oracle from Oracles Database Object-Relational Developers Guide. The guide gives the sql to create a Purchase Order (PO) application....

Q:

1)Which is the accounting standard setting body in the Philippines at the present time? A. Accounting Standard Council C. Philippine Accounting Standards Board B. Auditing and Assurance Standard...

Q:

1)Which is the accounting standard setting body in the Philippines at the present time? A. Accounting Standard Council C. Philippine Accounting Standards Board B. Auditing and Assurance Standard...

Q:

1)Which is the accounting standard setting body in the Philippines at the present time? A. Accounting Standard Council C. Philippine Accounting Standards Board B. Auditing and Assurance Standard...

Q:

the following relational algebra questions based on tables S1 and S2 (below) Question 1 What is the output of S1 S2 ? The row identified by sid 22 The rows identified by sid 31 and 58 The row...

Q:

The current issue and full text archive of this journal is available at www.emeraldinsight.com/0957-4093.htm IJLM 17,3 Realities of supply chain collaboration 312 Tilburg University, Tilburg, The...

Q:

Required: a) Calculate the current ratio, quick ratio, gross profit margin, profit margin, and debt to total assets for both years. Explain whether the ratios are improving or declining. b) Review...

Q:

database Design Project Contents Database Design Project Overview---------------------------------------------------------------------------- 2 Week 3 Company Overview and...

Q:

Which of the following statements is true about completeness constraint? a . The completeness constraint specifies whether each entity supertype occurrence must also be a member of at I subtype. b ....

Q:

What are blanket orders? How do they differ from invoiceless purchasing?

Q:

Rainmaker Company prepares its financial statements in accordance with IFRS. In 2012, Rainmaker recorded the following revaluation adjustments related to its buildings and land: The Companys building...

Q:

26. Brian Horn, a factory worker who is laid off until business picks up again, is . (LO5)

Q:

The Leniency bias is a type of: Select one: a. Contrast Errors b. Distributional Errors c. Team Work Errors d. Top managers Errors MacBook Pro o F1

Q:

2. This chapter discussed several trends that will influence the future of training. Based on future social, economic, political, or technological factors, identify one or two additional trends that...

Q:

10. What is organization development? Describe the interventions used to create change.

Q:

1. Interview a manager. Ask him to evaluate his companys training department in terms of training delivery, service, expertise, and contribution to the business. Ask him to explain the rationale for...