Database Questions

Q:

 ON UPDATE CASCADE ensures which of the following?

A) Normalization B) Data Integrity
C) Materialized Views D) All of the above.
 
Answer & Explanation Answer: B) Data Integrity

Explanation:
Report Error

View Answer Workspace Report Error Discuss

Filed Under: Database

23 16477
Q:

 A DBMS that combines a DBMS and an application generator is ________ .

A) Microsoft's SQL Server B) Microsoft's Access
C) IBM's DB2 D) Oracle Corporation's Oracle
 
Answer & Explanation Answer: B) Microsoft's Access

Explanation:
Report Error

View Answer Workspace Report Error Discuss

Filed Under: Database

19 14056
Q:

 A goal of data mining includes which of the following?

A) To explain some observed event or condition B) To analyze data for expected relationships
C) To confirm that data exists D) To create a new data warehouse
 
Answer & Explanation Answer: A) To explain some observed event or condition

Explanation:
Report Error

View Answer Workspace Report Error Discuss

Filed Under: Database

18 12106
Q:

If no multivalued attributes exist and no partial dependencies exist in a relation, then the relation is in what normal form?

A) First normal form B) Second normal form
C) Third normal form D) Fourth normal form
 
Answer & Explanation Answer: B) Second normal form

Explanation:
Report Error

View Answer Workspace Report Error Discuss

Filed Under: Database

8 11636
Q:

 For what purposes are views used?

A) To hide rows only B) To hide columns only
C) To hide complicated SQL statements only D) All of the above are uses for SQL views.
 
Answer & Explanation Answer: D) All of the above are uses for SQL views.

Explanation:
Report Error

View Answer Workspace Report Error Discuss

Filed Under: Database

4 11287
Q:

 Which of the following is the original purpose of SQL?

A) To specify the syntax and semantics of SQL data definition language B) To specify the syntax and semantics of SQL manipulation language
C) To define the data structures D) All of the above.
 
Answer & Explanation Answer: D) All of the above.

Explanation:
Report Error

View Answer Workspace Report Error Discuss

Filed Under: Database

9 8408
Q:

When mapping a supertype/subtype relationship which of the following is true?

A) The supertype primary key is assigned to each subtype. B) The subtype primary key is assigned to each supertype.
C) There is no link between the supertype/subtype entities. D) There is no primary key/foreign key relationship between a supertype/subtype.
 
Answer & Explanation Answer: A) The supertype primary key is assigned to each subtype.

Explanation:
Report Error

View Answer Workspace Report Error Discuss

Filed Under: Database

3 7264
Q:

________ is an open source DBMS product that runs on UNIX, Linux and Windows.

A) MySQL B) JSP/SQL
C) JDBC/SQL D) Sun ACCESS
 
Answer & Explanation Answer: A) MySQL

Explanation:
Report Error

View Answer Workspace Report Error Discuss

Filed Under: Database

5 6340