Microsoft R Open不提供除RODBC之外的任何SQL Server连接，但是（免费）

Microsoft R Client 和（付费）
Microsoft R Server 提供更直接的ODBC连接。 

Microsoft R Open does not provide any connection to SQL Server other than RODBC, but the (free) Microsoft R Client and the (for-pay) Microsoft R Server provide a more direct ODBC connection. 

干杯，

Rich Calaway

Rich Calaway

Microsoft R产品团队

Microsoft R Product Team