Inventory Database: Customers(custid, custName, address, phone, creditLimit) Orders (orderNo, orderDate, totalAmount, custID) products (prodNo, prodName, unitPrice) Includes(orderNo, prodNo, orderedQantity). The primary keys are underlined. The referential integrity constraints are as follows: the column custID of relation Orders that references table Customers, . the columns orderNo of relation Includes that references table orders, and • the column prodNo of relation Includes that references table Products. For the Inventory Database in the reference, write the SQL command to display the customer ID and the number of orders for each customer, For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).

Inventory Database: Customers(custid, custName, address, phone, creditLimit) Orders (orderNo, orderDate, totalAmount, custID) products (prodNo, prodName, unitPrice) Includes(orderNo, prodNo, orderedQantity). The primary keys are underlined. The referential integrity constraints are as follows: the column custID of relation Orders that references table Customers, . the columns orderNo of relation Includes that references table orders, and • the column prodNo of relation Includes that references table Products. For the Inventory Database in the reference, write the SQL command to display the customer ID and the number of orders for each customer, For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).

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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Concept explainers

SQL

SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.

Queries

A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.

Question

**Inventory Database:**

**Customers**(**custID**, custName, address, phone, creditLimit)

**Orders**(**orderNo**, orderDate, totalAmount, **custID**)

**Products**(**prodNo**, prodName, unitPrice)

**Includes**(**orderNo**, **prodNo**, orderedQantity)

The primary keys are **underlined**. The referential integrity constraints are as follows:
- The column **custID** of relation **Orders** that references table **Customers**.
- The column **orderNo** of relation **Includes** that references table **Orders**, and
- The column **prodNo** of relation **Includes** that references table **Products**.

For the Inventory Database in the reference, write the SQL command to display the customer ID and the number of orders for each customer.

_For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac)._

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