Multiple Choice
Which statement describing relations is false?
A) A relation is a two-dimensional table.
B) The entries in a relation may be single- or double-valued.
C) Each column in a relation has a distinct name.
D) The order of the columns in a relation is immaterial.
Correct Answer:
Verified
Correct Answer:
Verified
Q18: A determinant is any column (or collection
Q19: When you convert an unnormalized table to
Q20: A relation that does not contain any
Q21: When the commonly accepted shorthand representation is
Q22: In this text, Boyce-Codd normal form is
Q24: One can successfully design a database system
Q25: James converts a table with this notation:
Q26: You receive the following requirements for a
Q27: In an entity-relationship (E-R) diagram, one-to-many relationships
Q28: The duplication of data is formally called