SharePointBySql 1.2.0.1

 
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This FREE tool for SharePoint (WSS 3.0, MOSS 2007, SharePoint Foundation 2010, SharePoint Server 2010, SharePoint Foundation 2013, SharePoint Server 2013)
allows you to execute classic sql query using lists and document libraries like simple tables.
You can perform SELECT, INSERT, UPDATE, DELETE and "cross sub-site" JOIN!!

OS: Windows Server, Windows 2000, Windows XP, Windows Vista, Windows 7

Read more / Free download