ILOG DB Link Tutorial

There are 2 basic kinds of structures introduced by these new RDBMSs-lists, and objects.

First, this chapter demonstrates how to describe such a data type. It presents all the methods available to access the structure of the data type. To work with the objects created in the database, you need to know how these objects are built, that is, what their attributes are. This is referred to as describing the Abstract Data Type.

Then, the chapter presents the classes used to build an instance of an Abstract Data Type within DB Link, and how this instance is stored in the RDBMS.

These 2 items are reflected in this document as follows:

• Step 1: Getting the Description of an ADT - Shows how to get the description of an ADT.

• Step 2: Building an ADT - Shows how to handle an ADT value.

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