In the relational database model all of the following are true except
A) data is presented to users as tables
B) data can be extracted from specified rows from specified tables
C) a new table can be built by joining two tables
D) only one-to-many relationships can be supported
Correct Answer:
Verified
Q43: Which of the following is not a
Q44: Data concurrency
A)is a security issue in partitioned
Q45: A replicated database is appropriate when
A)there is
Q46: All of the following are elements of
Q47: Which statement is false?
A)The DBMS is special
Q49: In a hierarchical model
A)links between related records
Q50: Which term is not associated with the
Q51: Which statement is correct?
A)In a normalized database,
Q52: The update anomaly in unnormalized databases
A)occurs because
Q53: The advantages of a partitioned database include
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