Grant Fritchey (6/4/2014)
As far as licensing goes, to my knowledge, all these tools are freely available, depending on what licenses you have. If you have a Visual Studio license, you can get the database project version of SSDT. If you have a SQL Server license, you can get the SSIS/SSRS version of SSDT. What ever cross over these two might have, I'm not sure.[/url].
I don't think you need a license to install any of both tools.
If you don't have Visual Studio, the set-ups will install only a shell of VS.
SSDTBI (yes, the other one :-)) can be freely downloaded for VS2012 and VS2013. If you really want the one for VS2010, you need to use the SQL Server set-up (but you can use one with a developer edition license).
I think SSDT (the other other one) is freely downloadable for any version of VS (starting from VS 2010).
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MCSE Business Intelligence - Microsoft Data Platform MVP