Mysql 更改表信息

我有三张桌子：

表1：（消费者）

表2：（用户位置）

表3：（地点）

我想把

Magika12

的地址改为：

"124 Braelands Crescent, Albion, Melbourne, 9999"

因此，新表将如下所示：

LocationID | StreetNumber | StreetName |        Suburb | City |    Postal code
13234        124            Braelands Crescent  Albion   Melbourne 9999

我试过这样的方法：

UPDATE 
    L1
SET 
    L1.StreetNumber = 124,
    L1.StreetName = 'Braelands Crescent',
    L1.Suburb = 'Albion' ,
    L1.City = 'Melbourne',
    L1.Postalcode = 9999
FROM Location L1
INNER JOIN ConsumerLocation
WHERE ConsumerLocation.UserName = 'Magika'

UPDATE 
    Location L1
    INNER JOIN ConsumerLocation c on c.LocationID=L1.LocationID -- miseed on
SET 
    L1.StreetNumber = 124,
    L1.StreetName = 'Braelands Crescent',
    L1.Suburb = 'Albion' ,
    L1.City = 'Melbourne',
    L1.Postalcode = 9999
WHERE c.UserName = 'Magika'

我知道这是不正确的，但我不知道如何将所有表连接在一起以更新

Magika12

的地址。我已将

用户名

设置为

消费者

的主键，以及

消费者位置

的主键外键。和

LocationId

消费者位置的主键和

消费者位置的主键外键

任何帮助都将不胜感激
您的加入需要符合

条件。。。试试这个

 INNER JOIN ConsumerLocation ON Location.LocationId = ConsumerLocation.LocationId

---

当您

JOIN

没有任何

ON

条件时，您将获得所加入表中所有可能的行组合。这可能会有很多行。

您的加入需要一个

开启条件。。。试试这个

 INNER JOIN ConsumerLocation ON Location.LocationId = ConsumerLocation.LocationId

UPDATE 
    Location L1 
    JOIN ConsumerLocation CL ON CL.LocationID = L1.LocationID
SET 
    L1.StreetNumber = 124,
    L1.StreetName = 'Braelands Crescent',
    L1.Suburb = 'Albion' ,
    L1.City = 'Melbourne',
    L1.Postalcode = 9999
WHERE CL.UserName = 'Magika12';

当您
JOIN
没有任何
ON
条件时，您将获得所加入表中所有可能的行组合。那可能会有很多争吵

UPDATE 
    Location L1 
    JOIN ConsumerLocation CL ON CL.LocationID = L1.LocationID
SET 
    L1.StreetNumber = 124,
    L1.StreetName = 'Braelands Crescent',
    L1.Suburb = 'Albion' ,
    L1.City = 'Melbourne',
    L1.Postalcode = 9999
WHERE CL.UserName = 'Magika12';

如果您有多个与同一用户名相关的位置条目，请将LocationId添加到WHERE子句：

WHERE CL.UserName = 'Magika12' AND CL.LocationID = 13234

如果您有多个与同一用户名相关的位置条目，请将LocationId添加到WHERE子句：

WHERE CL.UserName = 'Magika12' AND CL.LocationID = 13234

您错过了
join
语句的条件。应该是这样的：

UPDATE 
    L1
SET 
    L1.StreetNumber = 124,
    L1.StreetName = 'Braelands Crescent',
    L1.Suburb = 'Albion' ,
    L1.City = 'Melbourne',
    L1.Postalcode = 9999
FROM Location L1
INNER JOIN ConsumerLocation
WHERE ConsumerLocation.UserName = 'Magika'

UPDATE 
    Location L1
    INNER JOIN ConsumerLocation c on c.LocationID=L1.LocationID -- miseed on
SET 
    L1.StreetNumber = 124,
    L1.StreetName = 'Braelands Crescent',
    L1.Suburb = 'Albion' ,
    L1.City = 'Melbourne',
    L1.Postalcode = 9999
WHERE c.UserName = 'Magika'

您错过了
join
语句的条件。应该是这样的：

UPDATE 
    L1
SET 
    L1.StreetNumber = 124,
    L1.StreetName = 'Braelands Crescent',
    L1.Suburb = 'Albion' ,
    L1.City = 'Melbourne',
    L1.Postalcode = 9999
FROM Location L1
INNER JOIN ConsumerLocation
WHERE ConsumerLocation.UserName = 'Magika'

UPDATE 
    Location L1
    INNER JOIN ConsumerLocation c on c.LocationID=L1.LocationID -- miseed on
SET 
    L1.StreetNumber = 124,
    L1.StreetName = 'Braelands Crescent',
    L1.Suburb = 'Albion' ,
    L1.City = 'Melbourne',
    L1.Postalcode = 9999
WHERE c.UserName = 'Magika'