Worldwide Relational Database Management Systems Post Steady Growth, Says IDC Tekrati Research News: "The worldwide market for relational database management systems (RDBMS) grew by 9.4 percent to $14.6 billion in 2005, according to preliminary figures released by IDC. These numbers reflect steady growth for the RDBMS software market, indicating a continued increase in the deployment of relational databases.
IDC said there were no changes among the top 5 RDBMS vendors from 2004 to 2005, in terms of share of worldwide market revenue.
Microsoft : 16.8%
NCR Teradata: 2.9%"