一篇非常精彩的解释CAP理论的文章,本文转载自http://blog.csdn.net/dc_726/article/details/42784237 个人感觉文章很好,感谢作者 Chapter 1: “Remembrance Inc” Your new venture :Last night when your spouse appreciated you on remembering her birthday and bringing her a gift, a stra...【阅读全文】
1.低效查法select ta.id from ta where ta.id not in (select tb.id from tb);2.高效查法 (使用连接查询)select ta.id from ta left join tb on ta.id = tb.id where tb.id is null;【阅读全文】