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Database System 2 - CS - Advanced SQL
Database System 2 - CS - SQL Server 2000
Database System 2 - CS - Data Warehousing
Database System 2 - CS - XML and ADO.NET
Database System 2 - CS - Database Redesign
Database System 2 - CS - Introduction to SQL
Database System 2 - CS - Distributed Databases
Database System 2 - CS - Client Server Database
Database System 2 - CS - Data Modeling with ER
Database System 2 - CS - Logical Database Design
Database System 2 - CS - Introduction to Database
Database System 2 - CS - Object Oriented Database
Database System 2 - CS - Physical Database Design
Database System 2 - CS - The Database Environment
Database System 2 - CS - ODBC, OLE DB, ADO, and ASP
Database System 2 - CS - ER Model and Business Rules
Database System 2 - CS - Database Processing for BIS
Database System 2 - CS - Managing Multiuser Databases
Database System 2 - CS - Object Oriented Data Modeling
Database System 2 - CS - Managing Databases with Oracle
Database System 2 - CS - SQL for Database Construction
Database System 2 - CS - Data and Database Administration
Database System 2 - CS - Data Models into Database Designs
Database System 2 - CS - Modeling Data in the Organization
Database System 2 - CS - The Database Development Process
Database System 2 - CS - The Internet Database Environment
Database System 2 - CS - JDBC, Java Server Pages, and MySQL
Database System 2 - CS - Database Design Using Normalization
Database System 2 - CS - The Relational Model and Normalization
  1. A relation has which of the following properties?

    2. A.

     Each row is not unique.
    B.

     Attributes can have the same name within a given table.
    C.

     Each relation has a unique name.
    D.

     The order of the columns is significant.

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  2. When mapping a ternary relationship with an associative entity into a relation which of the following is true?

    3. A.

     One relation is created.
    B.

     Two relations are created.
    C.

     Three relations are created.
    D.

     Four relations are created.

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  3. When mapping a regular entity into a relation which of the following is true?

    4. A.

     One relation is created.
    B.

     Two relations are created.
    C.

     Three relations are created.
    D.

     Four relations are created.

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  4. When mapping a supertype/subtype relationship which of the following is true?

    5. A.

     The supertype primary key is assigned to each subtype.
    B.

     The subtype primary key is assigned to each supertype.
    C.

     There is no link between the supertype/subtype entities.
    D.

     There is no primary key/foreign key relationship between a supertype/subtype.

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  5. Relations are:

    6. A.

     two-dimensional tables.
    B.

     three-dimensional tables.
    C.

     four-dimensional tables.
    D.

     five-dimensional tables.

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  6. An enterprise key is a primary key whose value is unique for a given relation.

    7. A.

     True
    B.

     False

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  7. A composite attribute does not get mapped into a relation.

    8. A.

     True
    B.

     False

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  8. A relation is a two-dimensional table.

    9. A.

     True
    B.

     False

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  9. Weak entities do not get mapped into a relation.

    10. A.

     True
    B.

     False

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  10. A primary key may be null.

    11. A.

     True
    B.

     False

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