MYSQL修改表结构语句 alter
MYSQL修改表结构语句 alter CREATE TABLE USER(id INT PRIMARY KEY AUTO_INCREMENT,username VARCHAR(20) UNIQUE,PASSWORD VARCHAR(20) NOT NULL,age INT,birthday ...
MYSQL修改表结构语句 alter CREATE TABLE USER(id INT PRIMARY KEY AUTO_INCREMENT,username VARCHAR(20) UNIQUE,PASSWORD VARCHAR(20) NOT NULL,age INT,birthday ...