使用内部联接从多个表进行SQL查询

我有一个名为INVOICE的表，从中可以获得ADDRESSID

ID      CODE    VALUE
1        BB      BlindFold
2        BC      Bucharest

我有另一个名为Address的表

ADDRESSID         ADDRESS
2                 BB
2                 BC

CC和BC的值位于另一个基于ADDRESSID的名为ADDRESSVALUE的表中

ID      CODE    VALUE
1        BB      BlindFold
2        BC      Bucharest

现在我使用内部联接作为查询表

SELECT AC.VALUE AS ADDRESS 
FROM ADDRESS AS OT
INNER JOIN INVOICE AS OM ON  OM.ADDRESSID = OT.ADDRESSID
INNER JOIN ADDRESSVALUE AS AC ON OT.ADDRESS = AC.CODE
WHERE OM.ADDRESSID = 2

我得到的结果是

Blindfold
Blindfold

但应该是这样

BlindFold
Bucharest

---

直接使用而不加入

SELECT OM.VALUE AS ADDRESS 
FROM INVOICE AS OM WHERE OM.ADDRESSID = @AddressID

--

（更新）获得您想要的结果的一种方法：

SELECT AC.VALUE AS ADDRESS 
FROM ADDRESS AS OT
INNER JOIN INVOICE AS OM ON  OM.ADDRESSID = OT.ADDRESSID
INNER JOIN ADDRESSVALUE AS AC ON OT.ADDRESS = AC.CODE
WHERE OM.ADDRESSID = @AddressID

---

SQLFiddle。

如果Address和Addressvalue表应该通过两个表中存在的列ADDRESSID连接，那么select语句应该包括如下内容

ADDRESS.ADDRESSID = ADDRESSVALUE.ADDRESSID

试试这个

SELECT C.VALUE AS ADDRESS
FROM ADDRESS A
INNER JOIN INVOICE B ON A.ADDRESSID=B.ADDRESSID
INNER JOIN ADDRESSVALUE C ON A.ADDRESSID=C.ADDRESSID 
    AND A.ADDRESS=C.CODE
WHERE B.ADDRESSID=2

---

例如，你可以看到

我认为根本不应该有任何结果。当您使用ADDRESSVALUE连接ADDRESS时，没有匹配项--BB不匹配Blindfold。抱歉，它现在已编辑。您使用的是两个不同的别名，但只有一个表。发票表中没有值列。你漏掉了WHERE关键字。它让我蒙了两次眼睛。你确定吗？！再次检查，并检查您部分中的相关查询。已编辑问题，请立即帮助。