ODATA 云驱动   http://www.cdata.com/cloud/    目前支持：ORACLE、MS SQL 、 MYSQL。

DATADIRECT CLOUD    https://www.progress.com/products/datadirect-cloud

Cloud Drivers

Makes on-premise & cloud data sources easily accessible across platforms and devices.

Expose live data from internal and external facing web applications, mobile apps, ETL tools, and popular desktop applications.

• Make data easily accessible to Web, desktop, and mobile clients.
• Access data through simple standards-based interfaces like ODATA, REST, HTML, RSS, ATOM, JSON, SOAP, CSV.

ODATA 云驱动 http://www.cdata.com/cloud/

原文：http://www.cnblogs.com/hopesun/p/4467760.html