洪发

Generation

text to sql syntaxSun, 05 Feb 2023

iD自生成 用户名 数值型 积分 数值型可接受空值 推荐用户

CREATE TABLE users( user_id INT UNSIGNED AUTO_INCREMENT, user_name VARCHAR(20) NOT NULL, credits INT DEFAULT 0, referral_by INT UNSIGNED, PRIMARY KEY (user_id), FOREIGN KEY (referral_by) REFERENCES users(user_id) );

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