The Database Environment
Which of the following is true for a relational database?

It is difficult to access data.
Complex programs have to be written for simple queries.
Data is represented by tables.
All of these

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The Database Environment
A database management system (DBMS) is a:

hardware system used to create, maintain, and provide controlled access to a database.
hardware system used to create, maintain, and provide uncontrolled access to a database.
software system used to create, maintain, and provide uncontrolled access to a database.
software system used to create, maintain, and provide controlled access to a database.

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