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Before relational database ideas are applied, absent any defined relationships, a database table might look like this: The drawback to such a system is that, as records are added, errors can and will be made — a species may not belong to the genus to its left, or a genus to the family to its left, ad infinitum, and unless someone carefully researches each entry, errors are inevitable.

Lutus Introduction | Relational Inventory Control System | Example Database Topical Links (double-click any word to see its definition) A relational database differs from a conventional database by having connections between tables that define relationships.

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Look at the "Customers" table: Every table is broken up into smaller entities called fields.


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