Databases
VisionR uses a relational database as a storage place for the user data. The software definitions are also placed in the database. This makes backups and support extremely easy. VisionR supports almost any relational database system (RDBMS) on the market.
Supported databases
| Software | Versions / distributions | Comment |
| Oracle | 11g + | recommended |
| PostgreSQL | 8.1 + | recommended |
| MySQL | 4 + | recommended |
| Microsoft SQL Server | 2008 + | recommended |
| Firebird | 2.5 + | not fully tested |
| DB2 | 9.5 + | not fully tested |