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Home ‣ Database ‣ ER Model and Business Rules See What Others Are Saying!
- Question
If an entity adheres to the disjoint rule, then an entity instance can be a member of more than one entity for a given supertype.
Options- A. True
- B. False
- Correct Answer
- False
- 1. SQL provides five built-in functions: COUNT, SUM, AVG, MAX, MIN.
Options- A. True
- B. False Discuss
- 2. What is sent to the user via HTTP, invoked using the HTTP protocol on the user's computer, and run on the user's computer as an application?
Options- A. A Java application
- B. A Java applet
- C. A Java servlet
- D. None of the above is correct. Discuss
- 3. ________ is an interface by which application programs can access and process SQL databases in a DBMS-independent manner.
Options- A. ODBC
- B. OLE DB
- C. JPCD
- D. ADO Discuss
- 4. Data-volume and frequency-of-use statistics are not critical inputs to the physical database design process.
Options- A. True
- B. False Discuss
- 5. Enterprise Resource Planning (ERP) is an example of a single user database.
Options- A. True
- B. False Discuss
- 6. The role of the ETL process is to identify erroneous data and to fix them.
Options- A. True
- B. False Discuss
- 7. The ODMG Object Model supports only unary and binary relationships.
Options- A. True
- B. False Discuss
- 8. A benefit of using a stored procedure is that it can be distributed to client computers.
Options- A. True
- B. False Discuss
- 9. Nonclustered indexes are faster than clustered indexes for retrieval.
Options- A. True
- B. False Discuss
- 10. A null value is assigned when no other value applies.
Options- A. True
- B. False Discuss
More questions
Correct Answer: True
Correct Answer: A Java applet
Correct Answer: ODBC
Correct Answer: False
Correct Answer: False
Correct Answer: False
Correct Answer: True
Correct Answer: False
Correct Answer: False
Correct Answer: True
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