Questions from Database Systems

Q: What is sparse data? Give an example.

What is sparse data? Give an example.

Q: What is a business rule, and what is its purpose in

What is a business rule, and what is its purpose in data modeling?

Q: Define and describe the basic characteristics of a NoSQL database

Define and describe the basic characteristics of a NoSQL database

Q: Using the example of a medical clinic with patients and tests,

Using the example of a medical clinic with patients and tests, provide a simple representation of how to model this example using the relational model and how it would be represented using the key-val...

Q: What is logical independence?

What is logical independence?

Q: What is physical independence?

What is physical independence?

Q: Create the ERM. Data from FIGURE Q3.18

Create the ERM. Data from FIGURE Q3.18 The Ch03_Theater Database Tables:

Q: Create the relational diagram to show the relationship between DIRECTOR and PLAY

Create the relational diagram to show the relationship between DIRECTOR and PLAY. Data from FIGURE Q3.18 The Ch03_Theater Database Tables:

Q: Suppose you wanted quick lookup capability to get a listing of all

Suppose you wanted quick lookup capability to get a listing of all plays directed by a given director. Which table would be the basis for the INDEX table, and what would be the index key? Data from F...

Q: What would be the conceptual view of the INDEX table that is

What would be the conceptual view of the INDEX table that is described in question 26? Depict the contents of the conceptual INDEX table. Data from FIGURE Q3.18 The Ch03_Theater Database Tables: