The selection of data storage technologies is made during the systems implementation and operation phase.
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Q15: When using the relational notation,the primary key
Q16: Generally speaking,logical and physical database design is
Q17: The primary deliverable from logical database design
Q18: Referencing a relation,the sequence of columns cannot
Q19: Normalization helps build a data model that
Q21: The result of normalization is that every
Q22: A data marker is a field of
Q23: Efficient use of secondary storage and data
Q24: If for every valid value of A
Q25: A derived field is a field that
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