Kroenke-DBP-E10-TIF-Chapter01

IST331 Exam1 Fall 2005 V. Matos

True-False Questions

1. The purpose of a database is to help people keep track of things.

2. In a database, each table stores data about a different type of thing.

3. In a database, each row in a spreadsheet has data about a particular instance.

4. In every database, not just the databases discussed in this book, table names are capitalized.

5. A database shows data in tables and the relationships among the rows those tables.

6. Data is recorded facts and figure; information is knowledge derived from data.

7. Databases record data in such a way that they can produce information.

8. Enterprise Resource Planning (ERP) is an example of a data mining application.

9. Small databases typically have simple structures.

10. Microsoft Access is a low-end product intended for individuals and small workgroups.

11. Applications are computer programs used directly by users.

12. Sequenced Query Language (SQL) is an internationally recognized standard language that is understood by all commercial database management system products.

13. A database management system (DBMS) creates, processes and administers databases.

14. Microsoft Access is just a DBMS.

15. The DBMS engine in Microsoft Access is called Jet.

16. In Microsoft Access, you can use the Oracle DBMS in place of the Jet DBMS by using the appropriate "File" command.

17. In an Enterprise-class database system, a database application interacts with the DBMS.

18. In an Enterprise-class database system, a database application accesses the database data.

19. In an Enterprise-class database system, business users interact directly with the DBMS, which directly accesses the database data.

20. A database is called "self-describing" because it reduces data duplication.

21. The description of a database's structure that is stored within the database itself is called the "metadata."

22. In a database processing system, stored procedures are held by the database management system (DBMS). 23. Information systems that stored groups of records in separate files were called file processing systems.

24. The relational model was first proposed in 1970 by E. F. Codd at IBM.

25. Business organizations have resisted adopting object-oriented database systems because the cost of purchasing OODBMS packages is prohibitively high.

Part 2. Phrasing queries with SQL.

In this example we assume familiarity with the COMPANY database, sketched below: EMPLOYEE (fname, minit, lname, ssn, bdate, address, sex, salary, superssn, dno) KEY: ssn DEPARTMENT (dname, dnumber, mgrssn, mgrstartdate) KEY: dnumber. PROJECT (pname, pnumber, plocation, dnum) KEY: pnumber. WORKS_ON (essn, pno, hours) KEY: (essn, pno) DEPENDENT (essn, dependent-name, sex, bdate, relationship) KEY: (essn, dependent-name) Write a SQL query to answer the following two requests.

1. Give the SSN of each female employee working for dept 4 whose salary is no less than $50,000.00

2. Give the Fisrt Name, Last Name, and SSN of each female manager