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Every relationship in an E-R diagram must translate to an individual relation in the relational model. Given an SQL query, there are often multiple ways
- Every relationship in an E-R diagram must translate to an individual relation in the relational model.
- Given an SQL query, there are often multiple ways of writing it in relational algebra.
- For any relation, it is possible to construct two separate unclustered indexes on different keys.
- Given a relation that is not in BCNF there is always a unique decomposition into relations that are in BCNF.
- B+ trees can include duplicate keys.
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Fundamentals Of Database Systems
Authors: Ramez Elmasri, Shamkant Navathe
7th Edition
0133970779, 978-0133970777
