Re: The wisdom of the object mentors (Was: Searching OO Associations with RDBMS Persistence Models)

From: Mikito Harakiri <>
Date: 2 Jun 2006 12:57:29 -0700
Message-ID: <>

Cimode wrote:
> Actually, I have an example in mind that may be interesting...How do
> you implement a no-overlap operator constraint in SQL knowing that some
> NULL values are within a specific. Hint: try to answer this question
> using (CHECK, UNIQUE, FOREIGN KEY) and you will see what I am refering
> to.?

Could you please be more specific? What is the table defnition, what is the sample content, and what condition do you want ot assert? Received on Fri Jun 02 2006 - 21:57:29 CEST

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