zoukankan      html  css  js  c++  java
  • mysql top 10

    --Top 10 网点

                       SELECT

             t.site_id

    FROM

             (

                       SELECT

                                site_id,

                                count(1),

                                @curRank :=@curRank + 1 rank

                       FROM

                                express_order_stor t,

                                (SELECT @curRank := 0) f

                       WHERE

                                t.postman_id = 1877665

                       AND t.create_time >= '2019-02-01'

                       AND t.create_time < '2019-03-01'

                       AND t.`status` = 7

                       GROUP BY

                                t.site_id

                       ORDER BY

                                count(1) DESC

             ) t

    WHERE

             t.rank <= 10;

  • 相关阅读:
    C++互斥器:Semaphores
    C++互斥器:Mutex
    内联函数(inline)
    C++显式转换
    线程同步控制
    拷贝构造函数——防篡改
    extern关键字
    虚析构、纯虚析构
    类的友元关系
    char 与 unsigned char的本质区别
  • 原文地址:https://www.cnblogs.com/zfzf1/p/10624117.html
Copyright © 2011-2022 走看看