Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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CREATE 3 tables as listed below in your own database . */
CREATE TABLE Customer
(CustomerID VARCHAR(20) PRIMARY KEY,
CustomerLName VARCHAR(30),
CustomerFName VARCHAR(30),
CustomerStatus VARCHAR(10));
CREATE TABLE SaleOrder
(OrderID INT IDENTITY PRIMARY KEY,
CustomerID VARCHAR(20) REFERENCES Customer(CustomerID),
OrderDate DATE,
OrderAmountBeforeTax INT);
CREATE TABLE Customer
(CustomerID VARCHAR(20) PRIMARY KEY,
CustomerLName VARCHAR(30),
CustomerFName VARCHAR(30),
CustomerStatus VARCHAR(10));
CREATE TABLE SaleOrder
(OrderID INT IDENTITY PRIMARY KEY,
CustomerID VARCHAR(20) REFERENCES Customer(CustomerID),
OrderDate DATE,
OrderAmountBeforeTax INT);
CREATE TABLE SaleOrderDetail
(OrderID INT REFERENCES SaleOrder(OrderID),
ProductID INT,
Quantity INT,
UnitPrice INT,
PRIMARY KEY (OrderID, ProductID));
/* Write a trigger to put the total sale order amount before tax
(unit price * quantity for all items included in an order)
in the OrderAmountBeforeTax column of SaleOrder. */
(OrderID INT REFERENCES SaleOrder(OrderID),
ProductID INT,
Quantity INT,
UnitPrice INT,
PRIMARY KEY (OrderID, ProductID));
/* Write a trigger to put the total sale order amount before tax
(unit price * quantity for all items included in an order)
in the OrderAmountBeforeTax column of SaleOrder. */
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