The Effect Of Open Source DBs
Are open source databases, like MySQL and PostgreSQL, putting pressure on the big guys? According to this ZDNet piece, says that the pressure from open source DBs is causing companies to drop prices and add features to try to stay ahead of open source offerings.
This is complicated by the fact that many open source offerings are already "good enough" in terms of features and stability. A Forrester survey mentioned in the article found that 85 percent of corporate customers use only 30 percent of "enterprise" features in Oracle, DB2 or SQL Server.
Of course, we've seen this trend coming for a long time. While Oracle, DB2 or SQL Server have some features not found in MySQL, or PostgreSQL (and its derivatives), they have the features that many customers need at a price point that makes much more sense.