The sample data in SQL is provided by Microsoft's AdventureWorks training database, which can be provided both on your own SQL server and directly as an Azure SQL Database. Microsoft provides ...

FreeTDS ought to compile on OS X, and it includes a simple little "tsql" command-line utility for connecting to MS-SQL servers and issuing queries.

Microsoft also announced the public preview of the new open-source Python driver for SQL Server, which is a fully open-source Python solution for connecting to SQL Server.