That said, there are other important reasons some customers delay making database upgrades, according to Fielding. One may be that they simply have a stable, working platform, he said. "If you have an application running very stably, doing an upgrade still involves a fair amount of effort and risk. It could even involve downtime." Budgetary reasons could be another concern, he added.
Oracle database customers are expected to have another choice for upgrading later this year or early next, upon the release of version 12c. A formal announcement of that edition could come at next month's OpenWorld conference in San Francisco.
The big companies Pythian works with, however, probably won't move to 12c production systems that soon, according to Fielding. "I'm not seeing that. I'm seeing it even the almost the other way around, with large enterprise customers are interested in 12c, but they will be testing it in the labs for a number of years."
Customers may also choose to start running existing database workloads in Oracle's public cloud, which is offering database instances on-demand, rather than commit to a traditional on-premises upgrade.
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