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Percona's DBMS Popularity Survey

Open Source vs. Commercial, Public Cloud vs. On-Premise vs. Hybrid Cloud? Which one? Last month ScaleGrid attended Percona's Live event, got the insight on the most used "databases" by Percona's clients in 2019 and made a report out of it.
I'll ignore the fact that the report mistakenly uses the term "database" in place of (R)DBMS, so that I can just focus on the juicy stuff.
The popularity categories are broken down into:
  • Top Databases Used: Open Source vs. Commercial
  • Cloud Infrastructure Analysis: Public Cloud vs. On-Premise vs. Hybrid Cloud
  • Polyglot Persistence Trends: Number of Databases Used & Top Combinations
So first of all, the lowdown on the top Open Source "Databases".

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