[Err] 1075 - Incorrect table definition; there can be only one auto column and it must be defined as

msyql 数据库 报错

[Err] 1075 - Incorrect table definition; there can be only one auto column and it must be defined as a key

sql 语句创建表，报错语句如下 

 

create table users(

id int not null auto_increment  ,
uname  varchar(30)  not null  ,
upwd int not null  ,
note varchar(30) not null    
)

create table tusers(
id int not null auto_increment  ,
uname  varchar(30)  not null  ,
upwd int not null  ,
note varchar(30) not null,
primary key(id) 
)

加上  声明一个主键 就ok啦。