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Lead and Lag Functions in SQL Server 2012

Arshad Ali discusses how to use CTE and the ranking function to access or query data from previous or subsequent rows. He also shows you how to leverage the LEAD and LAG analytics functions to achieve the same result without writing a self-join query using CTE and ranking function  Read more...
By Additional Articles 2014/12/10 | Source: Database Journal | Category: sql server 2012
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