在MYSQL中連接多個表的更新表格

Question

嗨，我想更新我的表格，但它給了我一個錯誤。

ERROR 1064 (42000): You have an error in your SQL syntax; 

這是我的腳本

UPDATE table1 
SET last_name = table3.lastname, 
first_name = table3.firstname, 
FROM table1 
INNER JOIN table2 
ON table2.entity_id = table1.entity_id 
INNER JOIN table3 
ON table3.biometric_id = table2.biometric_id; 

Answer 1

這應該你使用MySql做工給出 - UPDATE... JOIN... SET...：

UPDATE table1 t1 
    JOIN table2 t2 
     ON t2.entity_id = t1.entity_id 
    JOIN table3 t3 
     ON t3.biometric_id = t2.biometric_id; 
SET t1.last_name = t3.lastname, 
    t1.first_name = t3.firstname