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I’d be curious to find out how the major databases compare in terms of popularity. How much of the market does Oracle have? How much does MS SQL have? MySQL, PostGre, …? How does this breakdown in the smaller markets (e.g. small web apps, large web apps, huge corporate services,…)?
I’m looking for statistics here. Not impressions.
Note: I’d say the number of applications/projects based on a given db would be the measure of popularity.
From Oracle website, they are number 1.
Source
Gartner 2008 Worldwide RDBMS Market Share Reports 48.9% Share for Oracle (*)
Gartner has published their market share numbers by operating system for 2008 based on total software revenues. According to Gartner, Oracle
Continues to be #1 overall with 48.9 per cent share
Continues to hold more market share than its six closest competitors combined
Continues to be #1 on Linux with 75.8 per cent share
(*) Source: Market Share: Relational Database Management System Software by Operating System, Worldwide, 2008 – Colleen Graham, Bhavish Sood, Horiuchi Hideaki, Dan Sommer – June 12, 2009
The big three DBMS vendors remain the same:
Oracle followed by IBM followed by Microsoft. After the big three, number four is Sybase with 3.5% market share and number five is Teradata with 3.3% market share.