I need to use DBAdapter with the feature of merger and without PrimaryKey

I have a FTPAdapter that gets a file from the server, but the file is not a primary key. It's only has a column with the type of UNIQUE constraint. How can I use the merge without primary key feature. The primary is generated by sequence and relaxation. For example, the file is not a primary key

In fact, you need an unique identifier, primary key not exactly. When you use the db adapter Wizard you will be asked on the primary key when the wizard did not by itself. Simply choose the necessary columns (those unique key).

Primary keys must be produced by sequence, they can be passed a value as well or generated otherwise (in sequence). How it will be managed in TopLink characteristics of the created db adapter can be found. You can change the sequencing method, manipulate columns and constraints and so on.

Tags: Fusion Middleware

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