SQL Server providers
Even though there is lots of buzz surrounding no-sql databases like MongoDb and unstructured data stores like data lakes (or data swamps, depending on your point of view), a significant percentage of data that our industry works with is still stored in relational databases. As we have seen in prior chapters, the data scientist must be able to effectively communicate with relational databases using SQL. However, we also saw that F# offers the ability to use something called a type provider to access SQL Server.
Non-type provider
Let's go back to the SQL that was used in Chapter 3, More AdventureWorks Regression, to bring down the Average Orders, Average Reviews, and List Price for individual customers and see how to do it differently. ...
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