你好我是sql的新手,只是真正用于JDBC,我试图创建一个数据库调用SuperMarket并用这个sql脚本创建表
CREATE TABLE item (
ID INT NOT NULL CONSTRAINT pk_item PRIMARY KEY,
name VARCHAR(30),
price DOUBLE PRECISION,
quantity INT
);
CREATE TABLE customer (
ID INT NOT NULL CONSTRAINT pk_customer PRIMARY KEY,
name VARCHAR(30)
);
CREATE TABLE employee (
ID INT NOT NULL CONSTRAINT pk_employee PRIMARY KEY,
name VARCHAR(30),
password VARCHAR(15)
);
CREATE TABLE trans (
ID INT NOT NULL CONSTRAINT pk_transaction PRIMARY KEY,
employee INT,
customer INT,
is_open INT
);
CREATE TABLE acquisition (
ID INT NOT NULL CONSTRAINT pk_acquisition PRIMARY KEY,
trans INT,
item INT,
quantity INT
);
当我尝试使用xampp在phpMyAdmin中导入它时,我收到以下错误:
Number 1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'CONSTRAINT pk_item PRIMARY KEY,
name VARCHAR(30),
price DOUBLE PRECISION,
qua' at line 2
我仍然找不到任何语法错误,任何人都可以告诉我我做错了什么?
答案 0 :(得分:2)
试试这个:
CREATE TABLE item (
ID INT NOT NULL,
name VARCHAR(30),
price DOUBLE PRECISION,
quantity INT,
CONSTRAINT pk_item PRIMARY KEY (ID)
);
您的CONSTRAINT
关键字位于错误的位置。其他表也是如此。
如果您只想将ID作为主键,则可以执行以下操作:
CREATE TABLE item (
ID INT NOT NULL PRIMARY KEY,
name VARCHAR(30),
price DOUBLE PRECISION,
quantity INT
);