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Basit's SQL Server Tips

Basit Farooq is a Lead Database Administrator, Trainer and Technical Author. He has more than a decade of IT experience in development, technical training and database administration on Microsoft SQL Server platforms. Basit has authored numerous SQL Server technical articles, and developed and implemented many successful database infrastructure, data warehouse and business intelligence projects. He holds a master's degree in computer science from London Metropolitan University, and industry standard certifications from Microsoft, Sun, Cisco, Brainbench, Prosoft and APM, including MCITP Database Administrator 2008, MCITP Database Administrator 2005, MCDBA SQL Server 2000 and MCTS .NET Framework 2.0 Web Applications.

xVelocity Columnstore Indexes in SQL Server 2012

With the release of SQL Server 2012, Microsoft introduced a new type of nonclustered index called xVelocity columnstore index in the SQL Server database engine. It is based on VertiPaq in-memory data compression technology. The xVelocity memory optimized columnstore indexes are one of the most significant performance and scalability enhancements in SQL Server 2012. The xVelocity columnstore indexes speed up the processing time for common data warehousing queries — particularly in situations where very large quantities of data have to be aggregated and accessed quickly. According to Microsoft, under certain conditions, the xVelocity columnstore index provides queries with speed improvements of 4X, 10X or even 100X.

Checkout my article here, in which I discussed how these indexes work and how the data is stored in a columnstore index.

This article is published onĀ SearchSQLServer.techtarget.com.


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