It's not even their first migration away from Oracle. I am fairly confident that Google used the horrible Oracle Calendar internally fifteen years ago (at least for travel?), until later GCal was able to replace it. And I remember another finance-related migration ten years ago or so, during the Pichette days. I thought they had gotten rid of Oracle once and for all, maybe it returned through the backdoor — an acquisition.
Yeah, I started at Google in early 2006 and definitely remember using the awful Oracle Calendar product for all calendaring. I know because I set up a calendar entry in Oracle Calendar for the day in 2015 that Back to the Future takes place...only to have to create it again once we moved to Google Calendar.
Re: finance, I remember using Oracle iExpense around the same time for business expenses and then at some point a couple years later we switched to another company's product. I don't think it lasted until the Pichette days, though...I'm almost certain it was replaced during Reyes' tenure as CFO and before Pichette got installed around 2008.
that product was Steltor Calendar Time which then was purchased by Oracle. For the time, it wasn't terrible (it supported sync to palm pilot). But yes, GCal is a real improvement.
