題組內容
三、建構股票交易資料庫(Stock),請寫出 SQL 指令。
(一)造出 Customer, StockTrade 表格。(10 分)
CREATE TABLE Customer ( _____________________ );
CREATE TABLE StockTrade ( _____________________ );
詳解 (共 1 筆)
詳解
CREATE TABLE Customer
cid INT NOT NULL AUTOINCREMENT,
cnameVARCHAR(10),
balance INT NOT NULL,
margin INT NOT NULL,
PRIMARY KEY (cid);
CREATE TABLE StockTRade
id INT NOT NULL AUTOINCREMENT,
sid INT NOT NULL,
price INT NOT NULL,
share INT NOT NULL,
cid INT NOT NULL,
PRIMARY KEY (id),
FOREIGN KEY (cid) REFERENCES
Customer (cid);
cid INT NOT NULL AUTOINCREMENT,
cnameVARCHAR(10),
balance INT NOT NULL,
margin INT NOT NULL,
PRIMARY KEY (cid);
CREATE TABLE StockTRade
id INT NOT NULL AUTOINCREMENT,
sid INT NOT NULL,
price INT NOT NULL,
share INT NOT NULL,
cid INT NOT NULL,
PRIMARY KEY (id),
FOREIGN KEY (cid) REFERENCES
Customer (cid);