摘要:
CREATE DATABASE IF NOT EXISTS mydbll_stu; USE mydbll_stu; CREATE TABLE student ( id INT(10) NOT NULL UNIQUE PRIMARY KEY, name VARCHAR(20) NOT NULL, se 阅读全文
摘要:
CREATE DATABASE mydb6_product;3USE mydb6_product; USE mydb6_product; CREATE TABLE employees ( id INT PRIMARY KEY name VARCHAR(5O) NOT NULL, age INT,ge 阅读全文