ERD:-PKCHECKOUTCheck NumFK1 Book_NumFK2 Pat_IDCheck_Out_DateCheck_Due DateCheck_In_DatePKBOOKBook NumBook TitleBook_YearBook_CostBook_SubjectFK1 Pat_ID-H-PATRONPK Pat IDPat_FNamePat_LNamePat_TypeWRITESPK,FK1 Book NumPK,FK2 Au IDAUTHORPK AU IDAu_FNameAu_LNameAu_BirthYear 10. Write a query to display the subject and the number of books in each subject. Sort the results by thenumber of books in descending order and then by subject name in ascending orderBOOK SUBJECT Books In SubjectProgrammingCloudDatabaseMiddleware9443

SQL has a few implicit capabilities and they are called as aggregate function.SQL contains five…

Answered: . Write a query to display the subject…

. Write a query to display the subject and the number of books in each subject. Sort the results by the number of books in descending order and then by subject name in ascending order

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

Single Table

In a database management system, a single table is designed to obtain data of heterogeneous items. A single-table design with DynamoDB resolves the issue of raising multiple requests for the relevant data of an entity.

Question

ERD:-
PK
CHECKOUT
Check Num
FK1 Book_Num
FK2 Pat_ID
Check_Out_Date
Check_Due Date
Check_In_Date
PK
BOOK
Book Num
Book Title
Book_Year
Book_Cost
Book_Subject
FK1 Pat_ID
-H-
PATRON
PK Pat ID
Pat_FName
Pat_LName
Pat_Type
WRITES
PK,FK1 Book Num
PK,FK2 Au ID
AUTHOR
PK AU ID
Au_FName
Au_LName
Au_BirthYear

10. Write a query to display the subject and the number of books in each subject. Sort the results by the
number of books in descending order and then by subject name in ascending order
BOOK SUBJECT Books In Subject
Programming
Cloud
Database
Middleware
9
4
4
3

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