Do you think you don't need to change your data source?

Relational Databases

1. Microsoft SQL Server
2. Oracle
3. Mysql

Document / Object Databases (NoSQL)

1. MongoDB
2. Hadoop
3. RavenDB

Text Files 

1. CSV
2. XML
3. Json

Soap Services

1. WCF
2. ASMX Web service

Rest Services

1. WebAPI
2. WCF

Cloud Storage

1. Microsoft Azure
2. Amazon AWS
3. Google Cloud SQL

You should definitely change your data source in future.