Re: Unique Index vs. Unique Constraint

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От Jan Wieck
Тема Re: Unique Index vs. Unique Constraint
Дата
Msg-id 3F8AB283.8000308@Yahoo.com
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Ответ на Re: Unique Index vs. Unique Constraint  ("scott.marlowe" <scott.marlowe@ihs.com>)
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scott.marlowe wrote:

> On Fri, 10 Oct 2003, Thomas LeBlanc wrote:
>
>> Does a Unique Constraint build a unique index?
>>
>> What is the difference?
>
> None that I know of.

A different implementation of UNIQUE constraint might allow
deferrability, what our index solution does not ... yet.


Jan

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