Connecting to Databases (Developer's Guide)
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When an InterBase Express (IBX) application connects to a database, that connection is encapsulated by a TIBDatabase component. A database component encapsulates the connection to a single database in an application. This chapter describes database components and how to manipulate database connections.
Another use for database components is applying cached updates for related tables. For more information about using a database component to apply cached updates, see Applying Cached Updates with a Database Component Method.