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DataBase Fundamentals new

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A relationship is ...

a column in a table that refers to the primary key in another table

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the way in which two columns in two different tables are related

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a list of keys or keywords which identify a unique record and can be used to search and sort records more quickly

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the degree to which a database has to be normalized

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Define the appropriate type of relationships.

Tables hold data about employees and the projects to which they are assigned. Each project can involve more than one employee and each employee is able to be occupied on more than one project

Each record in Table A relates to one, and only one, record in Table B, and each record in Table B relates to one, and only one, record in Table A.

Record in Table A can relate to zero, one, or many records in Table B. Many records in Table B can relate to one record in Table A.

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Match the appropriate definition and description

A key that consists of two or more table columns that together uniquely identify a table row.

A column whose values match a Primary Key in another table

A value of this column will uniquely identify the record in the table

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Primary Key is defined

to identify any table in the database

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to identify any column of data in the table in unique way