Sun Microsystems will plunk down $1 billion to buy MySQL, the maker of a popular open-source database. Sun said Wednesday that it will pay about $800 million in cash for MySQL's privately held stock and will assume about $200 million worth of options. MySQL CEO Marten Mickos will join Sun's senior executive team after the transaction closes. The acquisition is a bold move for Sun, which has embraced open-source software and development practices in an effort to garner more revenue from its software business.
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