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Relational Databases and SQL Quiz

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Questions and Answers

Who proposed the relational model of data and in what year?

E. F. Codd proposed the relational model of data in 1970.

What is SQL and how is it used in relational database systems?

SQL stands for Structured Query Language and is used for querying and updating the database in relational database systems.

When was the term 'relational database' first defined and by whom?

The term 'relational database' was first defined by E. F. Codd at IBM in 1970.

What is the full form of RDBMS?

<p>Relational Database Management System.</p> Signup and view all the answers

What are Codd's 12 rules and how are they related to relational database systems?

<p>Codd's 12 rules define what constitutes a relational database system. However, no commercial implementations of the relational model conform to all of Codd's rules, so the term 'relational database' has come to describe a broader class of database systems.</p> Signup and view all the answers