Exam 9: Designing the Database

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To ensure that the database is designed correctly,an important member of the project team is the data administrator.​

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A lock on a portion of the database by one user,which does not allow other users to read or access the data is called a(n)______ ______.​

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Another name for a read lock is a(n)______ ______.​

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What does DBMS stand for?​

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A foreign key is a field or set of fields stored in one table that also exists as a primary key in another table.​

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All ____ in a table are guaranteed to be unique if the table's primary key is guaranteed to be unique.​

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A distributed database configuration where all databases use the same DBMS and have a global schema is called a(n)______ ______ ______.​

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______ ______ ______ is a query language used to access and update the data in a relational database.​

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In a one-to-many association the primary key of the "many" class is placed as a foreign key in the "one" class.​

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Another name for a write lock is a(n)______ ______.

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The technique of applying exclusive control to a part of the database to one user at a time is called a(n)______ ______.​

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Which of the following is not a synonym of the others?​

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If there is more than one field in a database table that is unique for all rows each one may be called a(n)______ _____.​

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____ are a critical element of relational database design because they are the bases for representing relationships among tables.​

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In an iterative approach to software development,it is usually best to develop the database in the first few iterations.​

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A database table is in _____ _____ _____ if no non-key attributes are functionally dependent on any other non-key attributes.​

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The domain data in a database is sometimes referred to as metadata.​

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Every database in a DBMS consists of two separate data stores.​

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Which is NOT one of the responsibilities of the database administrator?​

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​Invented keys that are not automatically generated in a relational database are dangerous and require careful scrutiny.

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