SQL Server 2008 R2 Reporting Services Lookup Functions

Problem
I noticed a new Lookup function in SQL Server 2008 R2 Reporting Services.  This sounds like something that I've needed for quite some time.  Can you provide an example of how I can use this?

Solution
There are three lookup functions in SQL Server 2008 R2 Reporting Services: Lookup, LookupSet and MultiLookup.  In this tip I will review each function and provide a simple report to show how it is used. 

More on: http://www.mssqltips.com/tip.asp?tip=2141

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