Original link: The spaghettified DBMS chart that shows Oracle's crown is slowly slipping / TheRegister.
MySQL/MariaDB and PostgreSQL are missing/very low despite dominating the database world today, because this is not count of database servers but dollar revenue for database products.
No surprise that general cloud database managed services (AWS and GCP plus "some of" Microsoft) has increased.
No surprise that specialized analytical cloud databases (Snowflag and Databricks) has increased.
No surprise that NoSQL databases (MongoDB, Cockroach, Couchbase and Neo4J) has increased.
I don't see the big change for the traditional databases (Oracle, IBM, "some of" Microsoft and SAP).
Translations: Cloudera => HBase, Datastax => Cassandra, EnterpriseDB => PostgreSQL.