Relational Databases

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A relational database is a digital database based on the relational model of data, as proposed by E. F. Codd in 1970. A software system used to maintain relational databases is a relational database management system (RDBMS). Many relational database systems have an option of using the SQL (Structured Query Language) for querying and maintaining the database.[1]

## Lessons

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* Introduction
* Design

## See Also

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* Databases
* Wikipedia: Relational databases

## References

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1. ↑ Wikipedia: Relational database