The spaghettified DBMS chart that shows Oracle's crown is slowly slipping

Change is glacial, but the direction is clear

It might look like a map of the London Underground designed by a madman, but Gartner's newly-completed DBMS Market Share Ranks: 2011-2025 has an important message. The change may be glacial, but (most of the) dominant database vendors are slowly losing their grip on the market....