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Designing a database is a very important phase in the database life cycle, which precedes all other phases except the requirements collection and the analysis. If the database design is created merely intuitively and without any plan, the resulting database will most likely not meet the user requirements concerning performance. Another consequence of a bad […]http://www.w3computing.com/sqlserver2012/wp-content/uploads/sites/5/2017/04/1.1.er-diagram-300x243.png