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An Introduction to the Progress Database - Radius

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<strong>Database</strong> S<strong>to</strong>rage<br />

Logical View<br />

• Area: A group of database objects<br />

(tables, indexes)<br />

• Table: A set of records (rows) that are<br />

composed of fields (columns)<br />

• Field: A single data value (or array)<br />

• Index: <strong>An</strong> ordered list of key value-rowid pairs<br />

that identify all rows in a table<br />

• Index entry: one key value-rowid pair<br />

6<br />

© 2007 <strong>Progress</strong> Software Corporation

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