Imagine you're a little open-source database company from Sweden named MySQL. Things are going pretty good for you. Instead of competing directly with the RDBMS overlords, any of whom could squash you like a bug in terms of product features or market share, you're pushing the idea of lean, mean commodity databases that can do grunt database work without busting the bank.
Such a humble approach is indeed working for MySQL AB. Forrester recently surveyed 140 large North American companies on their open-source plans and found that MySQL's open-source database was high on respondents' project lists, with 52 percent of respondents reporting that they're using it or plan to use it.
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