How to find N Consecutive records in a table using SQL

Posted by user320587 on Stack Overflow See other posts from Stack Overflow or by user320587
Published on 2010-04-27T23:17:41Z Indexed on 2010/04/28 0:53 UTC
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sql-server-2005

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sql-query

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sql

Hi, I have the following Table definition with sample data. In the following table, Customer Product & Date are key fields

Table One
Customer   Product    Date         SALE
   X          A       01/01/2010    YES
   X          A       02/01/2010    YES
   X          A       03/01/2010    NO
   X          A       04/01/2010    NO
   X          A       05/01/2010    YES
   X          A       06/01/2010    NO
   X          A       07/01/2010    NO
   X          A       08/01/2010    NO
   X          A       09/01/2010    YES
   X          A       10/01/2010    YES
   X          A       11/01/2010    NO
   X          A       12/01/2010    YES

In the above table, I need to find the N or > N consecutive records where there was no sale, Sale value was 'NO' For example, if N is 2, the the result set would return the following

     Customer   Product    Date         SALE
       X          A       03/01/2010    NO
       X          A       04/01/2010    NO
       X          A       06/01/2010    NO
       X          A       07/01/2010    NO
       X          A       08/01/2010    NO

Can someone help me with a SQL query to get the desired results. I am using SQL Server 2005. I started playing using ROW_NUMBER() AND PARTITION clauses but no luck. Thanks for any help

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