One of the most popular comparisons on IT Central Station is Oracle Database Appliance vs Oracle Exadata.
One user says about Oracle Database Appliance, "We had been using a separate server, separate storage, and a separate switch for our Oracle Database, which was costing us a lot of money because you have to have licenses for each of those devices. But now we have all of them in just one box. We don't have to buy a separate switch. We don't have to buy separate storage. We have everything in just one box."
Another user says about Oracle Exadata, "The most significant gain was in the area of performance. Performance increased significantly both for OLTP and batch works."
In your experience, which is better and why?