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Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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You are given the following data tables: Employees (EmployeelD, LastName, FirstName, BirthDate, Notes) Orders (OrderID, CustomerID, EmployeeID, Order Date, ProductID, UnitPrice, Quantity, ShipperID) Note that: The data type of "LastName", "FirstName", and "Notes" is string. The data type of "OrderID", "ProductID", "UnitPrice", "Quantity", "CustomerID", "EmployeeID", and "ShipperID" is number. The data type of "BirthDate" and "OrderDate" is date. "EmployeeID" in relation "Orders" represents the single employee who handles this order, and it is a foreign key that references "EmployeeID" in relation "Employees". Each order contains only a single type of product with a positive quantity. Question: For each of all employees, use the "GROUP BY" statement to compute the total quantity of products in orders he/she handled regardless of the product ID. Return the employee ID and the corresponding total quantity.
Transcribed Image Text:You are given the following data tables: Employees (EmployeelD, LastName, FirstName, BirthDate, Notes) Orders (OrderID, CustomerID, EmployeeID, Order Date, ProductID, UnitPrice, Quantity, ShipperID) Note that: The data type of "LastName", "FirstName", and "Notes" is string. The data type of "OrderID", "ProductID", "UnitPrice", "Quantity", "CustomerID", "EmployeeID", and "ShipperID" is number. The data type of "BirthDate" and "OrderDate" is date. "EmployeeID" in relation "Orders" represents the single employee who handles this order, and it is a foreign key that references "EmployeeID" in relation "Employees". Each order contains only a single type of product with a positive quantity. Question: For each of all employees, use the "GROUP BY" statement to compute the total quantity of products in orders he/she handled regardless of the product ID. Return the employee ID and the corresponding total quantity.
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