1. 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.
A. True
B. False
2. Most of the time, modification anomalies cause problems that are severe enough that a table should be normalized into BCNF.
A. True
B. False
3. When building a database from an existing set of tables, we still need to consider normalization principles.
A. True
B. False
4. We have normalized a table into BCNF if all candidate keys are determinants.
A. True
B. False
5. We use the SQL construct COLUMNS(*) to determine the number and type of columns in a table.
A. True
B. False