Oracle database has unparalleled scalability. Ask someone who works at Microsoft SQL Server division what their bug database looks like. They will tell you that a single SQL Server instance cannot scale to the entire SQL Server division. Oracle on the other hand has a single database for the entire company. No other database is this scalable.

But Oracle is not just a database company. Oracle started as a database company, but today they are more an applications company than a database company. They have ERP back-office applications (finance, operations, HR), and CRM front-office applications (sales, marketing, service). Oracle bought a large number of applications software companies such as Seibel, PeopleSoft, JD Edwards, NetSuite and Cerner to become this big.

Of course Oracle is also a major cloud services provider and provide AI superclusters, and GPU instances from NVIDIA and AMD (context for today's layoffs).