Purpose of reporting and analysis services do | SQL Server Performance Forums

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Purpose of reporting and analysis services do

Hi All, I want to know what is the use of these services especially repoting services.
In what situvations do we use these services and how. I want to the basic purpose of these tools and how to apply them in real time. Thanks,
In addition to the books online (updated) refer to
http://www.microsoft.com/sql/technologies/reporting/overview.mspx Satya SKJ
Microsoft SQL Server MVP
Writer, Contributing Editor & Moderator
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