我国现有的冷链监测技术手段主要以人工测量和纸面记录为主,无统一数据系统支持,无法进行预警、损失率大。
The monitoring technology in cold chain of China is mainly artificial measurement and paper-based records, and has no unified data system to support, can not warning early, so has a large loss rate.
大部分数据库系统支持时间戳运算。
大致可分为两条路:系统支持巨大的平行处理(MMP),或那些可以利用柱形储存的数据库。
Those options fall into two camps: systems supporting massively parallel processing (MPP), and those harnessing column-store databases.
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