July 2012
Intermediate to advanced
816 pages
27h 38m
English
Content preview from Programming Microsoft® SQL Server® 2012Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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xVelocity in the RDBMS: Columnstore Indexes
We believe BI technology should not be viewed as separate from relational technology, but rather as something adjacent to it on the data spectrum. The addition of columnstore indexes to the SQL Server relational engine supports this view of data technology in a very concrete way. Many queries which before would have had reasonable elapsed timings only in SSAS can now be accommodated inside relational databases, too.
Columnstore indexes are indexes in every sense of the word. They reside in the relational database, are backed up and restored along with it, and are based on the columns you desire. The cost-based query optimizer in SQL Server will do a good job of using columnstore indexes when they are ...
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