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Normalization requires applications to use more complex SQL since they will need to write subqueries and joins to recombine data stored in separate relations.
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Q4: In IDEF1X,extended E-R model N:M relationships are
Q14: An attribute that determines which subtype is
Q21: To create a MySQL index using SQL,the
Q23: Simple networks can be represented by using
Q31: Relations are sometimes left unnormalized to improve
Q32: A simple network is a collection of
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Q57: The SQL keyword SELECT is used to
Q68: A determinant of a functional dependency may
Q89: An SQL virtual table is called a