推荐mysql user-defined functions - 夜鸣猪的Ruby On Rails 空间 - ITeye博客

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推荐mysql user-defined functions

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个人推荐一下 mysql user function，早在Rails Cron 一个Rails的定时执行插件介绍我就提到要写一篇关于使用mysql user function的介绍

写这篇的原因是，我们当时曾经因为，添加用户自定义的函数，将一个常规的技术缩减一个数量级。从10几秒到1秒以内

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检查符合条件数据是否存在 exists？ | Rails Flex接口保存Flex传来的bytearray

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