CNBC (Oct. 23) – Amazon is learning how hard it can be to move off of Oracle’s database software. On Prime Day, while the e-retailer was dealing with a major website glitch that slowed sales, the company was also dealing with a technical problem in Ohio at one of its biggest warehouses, leading to thousands of delayed package deliveries. “It’s quite possible the outage would not have occurred if Amazon had stuck with Oracle,” says Matt Caesar, a computer science professor at Illinois.