June 2014
Intermediate to advanced
740 pages
23h 59m
English
CHAPTER 16
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Optimizing the Physical Design
During the translation from the logical design to the physical design, you must make four kinds of decisions. First, for each table, you have to decide not only whether you should use a heap table, a cluster, or an index-organized table, but also whether it has to be partitioned. Second, you must consider whether you should utilize redundant access structures such as indexes and materialized views. Third, you have to decide how to implement the constraints (not whether you have to implement them). Fourth, you have to decide how data will be stored in blocks, including the order of the columns, what datatypes ...