Database Management Quiz 2

1. A collection of conceptual tools for describing data, relationships, semantics and constraints is referred to as..........?

Correct! Wrong!

2. Dr.E.F. Codd represented ....... rules that a database must obey if it has to be considered truly relational.

Correct! Wrong!

3. In E-R Diagram, weak entity is represented by.......?

Correct! Wrong!

4. An entity that is related with itself is known as.......?

Correct! Wrong!

5. ....... is a bottom-up approach in which two lower level entities combine to form a higher level entity.

Correct! Wrong!

6. An entity set that does not have sufficient attributes to form a primary key, is a.........

Correct! Wrong!

7. Which SQL command delete all the records and does not remove the structure?

Correct! Wrong!

8. Which of the following is a Data Definition Language (DDL) command?

Correct! Wrong!

9. In........ Database, data is organized in the form of trees with nodes.

Correct! Wrong!

10. Which command is used to retrieve records from one or more table?

Correct! Wrong!

11. Rows of a relation are called ________?

Correct! Wrong!

12. The number of tuples in a relation is termed as ______?

Correct! Wrong!

13. In SQL, which of the following is a Data Manipulation Language (DML) command?

Correct! Wrong!

14. ..... is a top-down approach in which one higher level entity can be divided into two lowers level entities.

Correct! Wrong!

15. Which of the following is not a type of database?

Correct! Wrong!

16. In a relational database, each tuple is divided into fields called_______?

Correct! Wrong!

17. In E-R Diagram, attribute is represented by.......?

Correct! Wrong!

18. In SQL, TCL stands for______?

Correct! Wrong!

19. Which of the following is a part of the Oracle database system?

Correct! Wrong!

20. Which of the following is used with database?

Correct! Wrong!

Database Management Quiz Set 2
Results
Below 12 is not good, 13-16 need some improvement, 16+ excellent

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