When you store an image, audio, or video object in a user table, the object is not actually stored in the table. Instead, an extender creates a character string called a handle to represent the object, and stores the handle in the table. The extender stores the object in an administrative support table, or stores a file identifier in an administrative support table if you keep the content of the object in a file. It also stores the object's attributes and handle in administrative support tables. In this way, the extender can link the handle stored in a user table with the object information stored in the administrative support tables. The following figure illustrates the information stored for two images in a user table.
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