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MySql表,错误#1064&错误#1068定义了多个主键

我尝试安装MySql表时遇到错误,错误:

"#1064 - 您的SQL语法出错"

和错误:

"#1068 - 定义了多个主键"

这是数据库:

CREATE TABLE messages (
msg_id INT PRIMARY KEY AUTO_INCREMENT,
message VARCHAR(200),
uid_fk INT(10),
ip VARCHAR(45),
created INT(10),
uploads VARCHAR(50),
profile_uid INT(10)

PRIMARY KEY (`msg_id`),
KEY `uid_fk` (`uid_fk`)

);


CREATE TABLE comments (
com_id INT PRIMARY KEY AUTO_INCREMENT,
comment VARCHAR(200),
msg_id_fk INT(10),
uid_fk INT(10),
ip VARCHAR(45),
created INT(10),

PRIMARY KEY (`com_id`),
KEY `msg_id_fk` (`msg_id_fk`),
KEY `uid_fk` (`uid_fk`)

);


CREATE TABLE likes (
like_id INT PRIMARY KEY AUTO_INCREMENT,
msg_id_fk INT(10),
uid_fk INT(10),

PRIMARY …
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mysql sql create-table

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