SQL 只要涉及计算,要么不好写,要么性能差。我看到一篇文章,提出一个面试问题:https://mp.weixin.qq.com/s/LHSlD4OJ_k4E_6gbI5OTFg> 请写出 SQL,找出股价连续上涨的最长天数。答案是图一,真的有点吓人。文章的意思是,SQL 只是一种数据查询语言,以关系模型作为数学基础,本质就不适合复杂计算。…
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