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[英]Phpmyadmin #1075 - Incorrect table definition; there can be only one auto column and it must be defined as a key
[英]Incorrect table definition; there can be only one auto column and it must be defined as a key Codeigniter
我想在模型中创建一个方法来处理数据库创建。 但是当我运行它时,它说
表定义不正确; 只能有一个自动列,并且必须将其定义为键
private function create_users_table()
{
$this->load->dbforge();
$this->dbforge->add_field('id INT(11) NOT NULL AUTO_INCREMENT');
$this->dbforge->add_field('email VARCHAR(200) NOT NULL');
$this->dbforge->add_field('password VARCHAR(200) NOT NULL');
$this->dbforge->add_field('created DATETIME NOT NULL');
$this->dbforge->add_field('last_login DATETIME NOT NULL');
$this->dbforge->add_key('id',TRUE);
$this->dbforge->create_table($this->users_table);
}
codeigniter中的db forge类自动将id字段标识为主键。
$this->dbforge->add_field('id'); // gives id INT(9) NOT NULL AUTO_INCREMENT
感谢Neit的帮助。 答案是:id INT(11)NOT NULL AUTO_INCREMENT PRIMARY KEY
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