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如何INNER JOIN多个表?

[英]How to INNER JOIN multiple tables?

I have 4 tables that look like so: 我有4张桌子,看起来像这样:

dog
ID
<numerous fields>
vetID

client
ID
<again, numerous fields I don't think are relevant>

vet
ID
<More irrelevant fields>

dogclient
ID
DogID
ClientID

I'm trying to get all the information from all these tables for a specific dog's ID. 我正在尝试从所有这些表中获取特定狗的ID的所有信息。 I tried this query in a PDO prepared statement 我在PDO准备好的语句中尝试了此查询

SELECT dog.*, client.*, vet.* 
FROM dogclient 
INNER JOIN client ON dogClient.ClientID = client.ID 
INNER JOIN dog ON dogclient.DogID = dog.ID 
INNER JOIN dog.vetID = vet.ID 
WHERE dogclient.dogID = :id

the result was a syntax error in the query at: 结果是查询中的语法错误:

'.ID WHERE dogclient.dogID = '4''

How can I fix this? 我怎样才能解决这个问题?

SELECT dog.*, client.*, vet.* FROM dogclient 
    INNER JOIN client ON dogClient.ClientID = client.ID 
    INNER JOIN dog ON dogclient.DogID = dog.ID 
    INNER JOIN vet ON dog.vetID = vet.ID 
    WHERE dogclient.dogID = :id

you were missing the vet table in the last inner join 您在最后一个内部联接中缺少vet表

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