An Introduction to the Progress Database - Radius
An Introduction to the Progress Database - Radius
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