Softartisans Officewriter has some interesting products with SQL & Sharepoint integration.
Live Document Libraries
SharePoint Document Libraries are a convenient and increasingly popular way to share files across an organization. SharePoint adds powerful features, such as access control and versioning, on top of basic file availability. However, Document Libraries can only serve static documents. For example, if you wanted to store a spreadsheet with sales data, you would need to constantly edit the document to insure that the employees who download the file are getting the latest data. This limitation does not allow a company to take advantage of the fact that these documents are being stored on a server with ready access to the latest corporate data.
Publish data from:
Business Data Catalog
OfficeWriter turns SharePoint Document Libraries into Live Document Libraries, service the most current data from any ADO.NET or Business Data Catalog data source. Every time a user requests the document, you can return the latest data.