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Old 03-01-2008, 02:43 PM
Erland Sommarskog
 
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Default Re: fastest way to deduplicate a list

Michael Evanchik (mre224@yahoo.com) writes:
> Im trying to dedupe a table with only one field on it. The table has
> 40 million records in it. What is the fastest way?
>
> 1) create a table with a unque constraint on it insert into that
> table?


I assume that you would use the IGNORE_DUP_KEY option? Else the scheme
wouldn't work. That could very well be the fastest method.



--
Erland Sommarskog, SQL Server MVP, esquel@sommarskog.se

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