Transformation to DDL

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I start using the transformation templates within EA. My PIM has an attribute that I want to become a column with a unique constraint. What would be the "Right" way to do this. I need the column to be constrainted in the table.

After that I would like to point a foreign key to this constaint, the foreign key is an association in the PIM with source and dest role pointing to attributes in the class to be transformed.

Thanks for any help