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From John English <john.fore...@gmail.com>
Subject Re: Unique constraints and nulls
Date Mon, 19 May 2014 16:32:39 GMT
On 19/05/2014 15:14, Knut Anders Hatlen wrote:
> Hi John,
>
> I think CREATE UNIQUE INDEX ui ON Foo(A, B) might do what you want. In
> contrast to a unique constraint, a unique index doesn't allow duplicate
> nulls.

OK, many thanks!
-- 
John English

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