Which of the following statements is NOT true?
A) The rows of a database table do not have to be different; there can be two identical rows .
B) A given table instance becomes a different instance if a row is added or removed .
C) Columns (as a whole) and rows (as a whole) may be interchanged .
D) Even when the data for an attribute value is unknown, it is still a characteristic of that row .
Correct Answer:
Verified
Q25: Relationships in a database schema show how
A)
Q26: Rules for writing XML include
A) element names
Q27: An attribute or a set of attributes
Q28: XML must be written using a
A) web
Q29: XML tags cannot contain
A) numbers
B) uppercase letters
C)
Q31: The design of a(n) _ database is
Q32: The database scheme (or schema)
A) specifies, for
Q33: Select all that apply . Which is(are)
Q34: Select all that apply . Which of
Q35: Select all that apply . The encoding
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