Indexes are primary way of tuning performance

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Reference no: EM133266026

True or False

1. Indexes are a primary way of tuning performance.

2. Most RDBMSs optimize for nested queries better than they do JOINs.

3. Mathematically, a relation is a set of n tuples (x1, x2,... xn) where each element xi is drawn from a set Xi (and no tuple is repeated).

4. C.J. Date recommends an analytical approach to database design (rather than a synthetic one) when you are designing a brand new database from scratch

Reference no: EM133266026

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