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# Reading Case 5: Inheritance Views

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If you have an inheritance hierarchy that spans multiple tables and frequently query for the root class, consider defining an inheritance all-subclasses view. This allows a view to be used for queries against an inheritance superclass that can read all of its subclasses in a single query instead of multiple queries.

For more information about inheritance, see "Descriptors and Inheritance".

For more information about querying on inheritance, see "Querying on an Inheritance Hierarchy".