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11 Cards in this Set
- Front
- Back
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A collection of related tables
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Relational database
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A collection of fields that describe a person, place, object, event, or idea. Also, a two-dimensional structure made up of two rows and columns of data in a relational database in which each row is unique, row order is unimportant, all entries are single-valued, column order is unimportant, each column has a unique field name, column entries are from the same domain, and each row describes a single entity.
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Table
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A single characteristic or attribute of a person, place object, event, or idea.
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Field
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A complete set of field values for a specific person, place, object, event, or idea
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Record
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The specific value, or content, of a field in a record
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Field value
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A field that appears in more than one table, allowing you to connect the records in a separate table.
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Common field
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A field, or collection of fields, whose values uniquely identify each record in a table.
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Primary key
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A primary key field from one table that you include as a field in a second table forms a relationship between the two tables. Also, a field or a collection of fields in one table whose values must match the values of the primary key of some table or must be null.
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Foreign key
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A software program that lets you create databases and then manipulate data in them.
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Database Management System
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A primary key that consists of two or more fields
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Composite key
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A condition that occurs when you store the same data in more than one place; it wastes stored space and can cause inconsistencies.
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Data redundancy
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