Mysql 将一个表的多行与另一个表的多列匹配

我有两张桌子

第一个表：联系人列：

Customer ID,Project ID1,Project ID2,Project ID3

因此，一个联系人将有一行

第二个表：时间表列

Project ID, Name, Owner, Hours

一个联系人可以有多个条目

我想将时间表表中的项目id与联系人表的3列相匹配

我使用下面的查询

SELECT "Customer ID","Project ID","Project Name","Owner",
        "Hours","Approval Status","Status","Project Manager",
        "Sales Person","Account Manager","Discount %","Hourly Rate",
        "Monthly Budget","Total Budget" 
FROM  "Timesheets" 
    LEFT JOIN "Contacts (Boost Media Group)" 
        ON "Timesheets"."Project ID" = "Contacts (Boost Media Group)"."Zoho Projects ID 1";

但它并没有返回期望的结果，因为我无法使用联系人表的项目ID2、项目ID3检查它

有什么建议可以解决这个问题吗？

试试这个查询

SELECT `(Boost Media Group)`.`Customer ID`,`tyshet`.`Project ID`,`tyshet`.`Project Name`,`tyshet`.`Owner`,
        `tyshet`.`Hours`,`tyshet`.`Approval Status`,`tyshet`.`Status`,`tyshet`.`Project Manager`,
        `tyshet`.`Sales Person`,`tyshet`.`Account Manager`,`tyshet`.`Discount %`,`tyshet`.`Hourly Rate`,
        `tyshet`.`Monthly Budget`,`tyshet`.`Total Budget`
FROM  Timesheets as `tyshet`
    LEFT JOIN Contacts as `(Boost Media Group)`
        ON `tyshet`.`Project ID` = `(Boost Media Group)`.`Zoho Projects ID 1`;

---

如果我错了，请纠正我。我猜当Zoho项目ID为3或Zoho项目ID为2或Zoho项目ID为1的任何一个条件有时间表时，您都需要它们。项目ID

SELECT "Customer ID","Project ID","Project Name","Owner",
        "Hours","Approval Status","Status","Project Manager",
        "Sales Person","Account Manager","Discount %","Hourly Rate",
        "Monthly Budget","Total Budget" 
FROM  "Timesheets" 
    LEFT JOIN "Contacts (Boost Media Group)" 
        ON "Timesheets"."Project ID" = "Contacts (Boost Media Group)"."Zoho Projects ID 1"
or "Timesheets"."Project ID" = "Contacts (Boost Media Group)"."Zoho Projects ID 2"
or "Timesheets"."Project ID" = "Contacts (Boost Media Group)"."Zoho Projects ID 3"

---

列名周围有双引号吗？你确定吗？你真的有像Contacts Boost Media Group这样的表名和像Zoho Projects ID 1这样的列名吗请删除双QOUTES问题是如何将时间表表的行与Contacts表的多列相匹配。目前，我能够匹配联系人表的一列。我也将删除引号。@Gurpreet下次当您需要有关所用产品的帮助时，请不要犹豫，与支持团队联系。