Database Systems problems
- 1. Which of the following is not a relational database?
Options- A. dBASE IV
- B. 4th Dimension
- C. FoxPro
- D. Reflex
- E. None of the above Discuss
Correct Answer: Reflex
- 2. The PROJECT command will create new table that has
Options- A. more fields than the original table
- B. more rows than the original table
- C. both (a) and (b)
- D. all the fields of master table
- E. None of the above Discuss
Correct Answer: None of the above
- 3. A top-to-bottom relationship among the items in a database is established by a
Options- A. Hierarchical schema
- B. Network schema
- C. Relational schema
- D. All of the above
- E. None of the above Discuss
Correct Answer: Hierarchical schema
- 4. If a calculation is embedded in a form
Options- A. the result of the calculations are stored with the form
- B. the calculations are stored with the form
- C. the result of the calculations are printed in report
- D. All of the above
- E. None of the above Discuss
Correct Answer: the calculations are stored with the form
- 5. If the record management system allows you to edit values before they are recorded on disk, you can
Options- A. correct spelling changes before they are recorded
- B. change the name of a field
- C. change the width of a field
- D. All of the above
- E. None of the above Discuss
Correct Answer: correct spelling changes before they are recorded
- 6. When you have finished entering information into a form
Options- A. the template is written to the data file
- B. the contents of the form are written to the data file
- C. the contents of the form can be printed
- D. All of the above
- E. None of the above Discuss
Correct Answer: the contents of the form are written to the data file
- 7. Which command is used to remove an index from the database in SQL?
Options- A. DELETE INDEX
- B. DROP INDEX
- C. REMOVE INDEX
- D. ROLL BACK INDEX
- E. None of the above Discuss
Correct Answer: DROP INDEX
- 8. A report generator is used to
Options- A. update files
- B. print files on paper
- C. data entry
- D. All of the above
- E. None of the above Discuss
Correct Answer: print files on paper
- 9. An-owner-member set in the CODASYL specifications may have
Options- A. only one owner but many owner occurrences
- B. only one member but many member occurrence
- C. more than one member but only one occurrence per member
- D. All of the above
- E. None of the above Discuss
Correct Answer: only one owner but many owner occurrences
- 10. Sophisticated report generators can
Options- A. print row-oriented reports
- B. perform arithmetic operations
- C. selectively retrieve and print portions of a list
- D. All of the above
- E. None of the above Discuss
Correct Answer: All of the above
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