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Physical Database Design - Technical MCQs

Q1:

A rule of thumb for choosing indexes for a relational database includes which of the following?

A Indexes are more useful on smaller tables.

B Indexes are more useful for columns that do not appear frequently in the WHERE clause in queries.

C Do not specify a unique index for the primary key of each table.

D Be careful indexing attributes that have null values.

ANS:A - Indexes are more useful on smaller tables.

No answer description is available.