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Home ‣ Database ‣ Database Design Using Normalization Comments
- Question
In all cases, normalization into BCNF is desirable.
Options- A. True
- B. False
- Correct Answer
- False
- 1. The SELECT command, with its various clauses, allows users to query the data contained in the tables and ask many different questions or ad hoc queries.
Options- A. True
- B. False Discuss
- 2. SQL is a programming language.
Options- A. True
- B. False Discuss
- 3. Indexes may be created or dropped at any time.
Options- A. True
- B. False Discuss
- 4. A SELECT statement within another SELECT statement and enclosed in square brackets ([...]) is called a subquery.
Options- A. True
- B. False Discuss
- 5. The format SELECT-FROM-WHERE is the fundamental framework of SQL SELECT statements.
Options- A. True
- B. False Discuss
- 6. Denormalized tables are in BCNF.
Options- A. True
- B. False Discuss
- 7. Normalization requires programmers to write more complex SQL.
Options- A. True
- B. False Discuss
- 8. When building a database from an existing set of tables, we may safely assume that referential integrity constraints have been enforced on the data we are given.
Options- A. True
- B. False Discuss
- 9. One common design problem when designing a database from existing data is the use of a general-purpose remarks column in the received data.
Options- A. True
- B. False Discuss
- 10. Most of the time, modification anomalies cause problems that are severe enough that a table should be normalized into BCNF.
Options- A. True
- B. False Discuss
Database Design Using Normalization problems
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