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kevinonepiece
V2EX  ›  MySQL

MySql 跨库操作出现奇怪问题

  •  
  •   kevinonepiece · Aug 18, 2021 · 2580 views
    This topic created in 1723 days ago, the information mentioned may be changed or developed.
    SELECT * FROM db1.table1 WHERE db1.table1.id = db2.table2.id
    

    这条语句会报:

    unkown column db2.table2.id in where clause
    

    已确认 db2.table2.id 存在

    6 replies    2021-08-19 16:02:27 +08:00
    cryboy007
        1
    cryboy007  
       Aug 18, 2021   ❤️ 1
    SELECT * FROM db1.table1,db2.table2 WHERE db1.table1.id = db2.table2.id
    xsm1890
        2
    xsm1890  
       Aug 18, 2021
    新手上路?
    kevinonepiece
        3
    kevinonepiece  
    OP
       Aug 18, 2021
    @cryboy007 哦,谢谢
    kevinonepiece
        4
    kevinonepiece  
    OP
       Aug 18, 2021
    @xsm1890 太菜了。。
    mytoroto
        5
    mytoroto  
       Aug 18, 2021
    不喜欢 from 后面加多个表的写法
    kumasama
        6
    kumasama  
       Aug 19, 2021
    wocao
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