On Wednesday, Amazon's chief technology officer, Werner Vogels, said yet again that one of his happiest days last year was November 1, when the retailer shut down the largest Oracle data warehouse it was using and replaced it with its own Amazon Redshift.
Using tech from its Amazon Web Services cloud unit is making the whole company happier too, he said.
"With all of this, we moved to an environment that's so much more faster, so much more agile," Vogels said on stage on Wednesday at an Amazon Web Services summit.
Vogels said that data warehouses had been "such an expensive piece of hardware" and that Redshift was more cost-effective.
Now Redshift is "absolutely becoming the most popular cloud data warehouse out there," he said, adding that "in the past two years, with all these improvements and speed, we've been able to make Redshift 10 times faster."
CNBC reported last August that Amazon planned to move its infrastructure off Oracle's databases and to Amazon Web Services by the first quarter of 2020. So Amazon has about a year to hit that goal.
Oracle's cofounder and CTO, Larry Ellison, also said in August that other companies have had similar goals but didn't succeed.
"It's kind of embarrassing when Amazon uses Oracle but they want you to use Aurora and Redshift," Ellison said, referring to Amazon Web Services' database and data-warehousing products. "They've had 10 years to get off Oracle, and they're still on Oracle."
Ellison told investors this month that Oracle's new cloud database products were pulling customers away from Amazon Web Services.
