mysql-基于3个表进行更新

我尝试同时更新3个表。clients.id>cars.client\u id>works.car\u id为索引

UPDATE clients, cars, works 
JOIN cars on cars.client_id = clients.id 
JOIN works on works.car_id = cars.id 
SET clients.name = '15-adsadadadsa' , 
clients.email = '15-aaa@aa.com' , 
clients.phone = '15-3232131', 
clients.email = '15-aaa@aa.com' , 
cars.reg = 'aaa-aaa' , 
cars.model = 'aaa-aaa' , 
cars.year = '111111' , works.work = 'aaaa' WHERE works.id = '15';

但是得到错误

非唯一表/别名：“cars”

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谢谢你的帮助

这是因为

cars

表被提到了两次（在

UPDATE

和

JOIN

中），您不需要在

UPDATE

中提到表名，如果它们在

JOIN

中，请尝试以下操作：

UPDATE clients
JOIN cars on cars.client_id = clients.id 
JOIN works on works.car_id = cars.id 
SET clients.name = '15-adsadadadsa' , 
clients.email = '15-aaa@aa.com' , 
clients.phone = '15-3232131', 
clients.email = '15-aaa@aa.com' , 
cars.reg = 'aaa-aaa' , 
cars.model = 'aaa-aaa' , 
cars.year = '111111' , works.work = 'aaaa' WHERE works.id = '15';

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打败我20秒+1