Question

我需要向DB插入信息，但是如果信息＆＃34; user_id＆＃34;已存在更新，如下所示:(问题是user_id不是KEY）

INSERT INTO access_token 
        (id,access_token,user_id)
VALUES
        (1062371433,106237146,10623714)
ON DUPLICATE user_id     <=== receive error in this line
        UPDATE
            access_token = VALUES(access_token)

但在第5行收到错误，

如何解决？

感谢，

Answer 1

set @founded_id=(select user_id from access_token  where user_id='10623714');


if(@founded_id='10623714')then
update access_token  set ............

else
INSERT INTO access_token 
        (id,access_token,user_id)
VALUES
        (1062371433,106237146,10623714)

Answer 2

你可以用这个：

INSERT ON DUPLICATE KEY UPDATE

INSERT INTO access_token 
    (id,access_token,user_id)
VALUES
    (1062371433,106237146,10623714)
ON DUPLICATE KEY
    UPDATE
        access_token = VALUES(access_token);

如果存在，则更新MySQL更新

2 个答案: