13.2. Index design

A good database design is made in conjunction with, and is conscious of, application data access logic. For example, in order to design indexes for a particular table, the database designer must know how users will be accessing the table from the application(s). If an application allows searching for data on a particular column or set of columns, then this needs to be considered from an indexing point of view. That's not to suggest that the application completely dictates index design. The reverse is often true; sometimes unrealistic application access must be modified in order to prevent user-generated activity that causes database performance problems.

In this section, we'll concentrate on generic index design strategies, ...

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