Salesforce and Amazon are both planning on entirely eliminating Oracle software from crucial business systems and replacing it "with open-source database software alternatives," reports The Information. Oracle Founder and CTO Larry Ellison's colorful remarks about the companies in the past is said to have impacted the move. 
Amazon already transitioned two internal databases that take care of its e-commerce operation to open-source NoSQL, reports Bloomberg. Salesforce is developing an internal database — code-named "Sayonara" — for its customer management and marketing automation software. Salesforce plans to end its reliance on Oracle by 2023. 
Oracle's database is currently considered the top in the world, according to The Information, but its reputation is overshadowed by price. There are now cheaper alternatives for customers.