How an Extension Table Stores Custom Data

This topic describes the extension table. It includes the following information:

• Overview of an Extension Table

• How a One-To-One Extension Table Extends Data Storage for a Single Business Component

• How an Implicit Join Creates a Relationship Between a Base Table and a Business Component

• An Explicit Join Creates a Relationship Between an Extension Table and a Business Component

• A One-To-Many Extension Table Stores Data From Multiple Business Components

• Summary of Support for Extension Tables and Extension Columns

For more information, see the following topics:

• Options to Use a Predefined One-to-One Extension Table

• Options to Use a Predefined One-to-Many Extension Table

• Manually Creating a One-to-One Extension Table

• Using the New Table Wizard to Create a New Table