QUESTIONS

Describe the four steps in object persistence design.

How are a file and a database different from each other?

What is the difference between an end$-$user database and

an enterprise database? Provide an example of each one.

What are the differences between sequential and ran$-$

dom access files?

Name five types of files and describe the primary pur$-$

pose of each type.

What is the most popular kind of database today?

Provide three examples of products that are based on

this database technology.

What is referential integrity and how is it imple$-$

mented in an RDBMS$?$

List some of the differences between an ORDBMS and

an RDBMS$.$

What are the advantages of using an ORDBMS over

an RDBMS$?$

List some of the differences between an ORDBMS and

an OODBMS.

What are the advantages of using an ORDBMS over

an OODBMS?

What are the advantages of using an OODBMS over

an RDBMS$?$

What are the advantages of using an OODBMS over

an ORDBMS?

What are the factors in determining the type of

object persistence format that should be adopted for a

system? Why are these factors so important?

Why should you consider the storage formats that

already exist in an organization when deciding upon a

storage format for a new system?

When implementing the object persistence in an

ORDBMS, what types of issues must you address?

When implementing the object persistence in an

RDBMS$,$ what types of issues must you address?

Name three ways null values can be interpreted in a

relational database. Why is this problematic?

What are the two dimensions in which to optimize a

relational database?

What is the purpose of normalization?

How does a model meet the requirements of third

normal form?