Relational Junction works on-premise, in a private cloud such as Amazon EC2, and on Sesame Software’s cloud. Sesame’s cloud is strictly for managed backup and recovery of Salesforce data, and there is no customer access to the database. Customers have complete access to the database in on-premise or private cloud deployments, enabling data warehouse access for reporting and integration. A Relational Junction server must be on the same local network or data center as a traditional database. There is no such proximity restriction for API-based data.