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Airccc
V2EX  ›  MySQL

关于 MySQL 的一个查询问题

  •  
  •   Airccc · Apr 7, 2020 · 4355 views
    This topic created in 2362 days ago, the information mentioned may be changed or developed.

    MySQL 一张表里只有 10 条数据 id(0,1,2,3,4,5,6,7,8,9), 如何查出 100 条数据?

    9 replies  •  2020-04-23 16:20:19 +08:00
    F281M6Dh8DXpD1g2
        1
    F281M6Dh8DXpD1g2  
       Apr 7, 2020
    自己关联自己不就完了
    10 * 10 = 100
    MaxFang
        2
    MaxFang  
       Apr 8, 2020 via iPhone
    这是最原始的需求描述么🧐
    shiji
        3
    shiji  
       Apr 8, 2020 via iPhone   ❤️ 4
    在读瑞幸的源码?
    allAboutDbmss
        4
    allAboutDbmss  
       Apr 8, 2020
    @shiji :lol: 无中生有
    Trim21
        5
    Trim21  
       Apr 8, 2020 via Android   ❤️ 1
    笛卡尔积…
    skymei
        6
    skymei  
       Apr 8, 2020
    cross join... 但是这有啥意义
    iIli1iIliIllLiL
        7
    iIli1iIliIllLiL  
       Apr 8, 2020
    @shiji 给力。
    Airccc
        8
    Airccc  
    OP
       Apr 16, 2020 via iPhone
    @Trim21 对,就这个名词,一时间没记起来😂
    Spider251
        9
    Spider251  
       Apr 23, 2020
    select * from t join t as d
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