[From internetnews.com]
An unpublished study from code analysis firm Coverity indicates that open source database MySQL has relatively few defects in comparison to its commercial competition.
Coverity analyzed MySQL 4.1.8 last month and found a total of 97 bugs among the open source database’s approximately 425,000 lines of code. The defects cross over nine different categories, including memory/resource leaks, various forms of nulls and overrun conditions (including Deadcode, forward null, negative returns, static over run, resource leak, reverse null, unused value, uninitialized variable, use after free and unused value).
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http://internetnews.com/security/article.php/3469631