QUESTION 5 Consider the following tables: BOOKS (BookNo, Title, Author, ISBN, Stock, Price, Tax) STORE(StoreNo, City, State, Zip, Inventory) STOCK(StoreNo BookNo.Qty) Draw the join graph and the optimized relational algebra tree for the following query: SELECT TITLE, CITY,QTY FROM BOOKS, STORE, STOCK WHERE BOOKS. BOOKNO = STOCK BOOKNO AND PRICE > 100 AND TITLE="DISTRIBUTED DB";

QUESTION 5 Consider the following tables: BOOKS (BookNo, Title, Author, ISBN, Stock, Price, Tax) STORE(StoreNo, City, State, Zip, Inventory) STOCK(StoreNo BookNo.Qty) Draw the join graph and the optimized relational algebra tree for the following query: SELECT TITLE, CITY,QTY FROM BOOKS, STORE, STOCK WHERE BOOKS. BOOKNO = STOCK BOOKNO AND PRICE > 100 AND TITLE="DISTRIBUTED DB";

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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For the remaining questions, use the following table of people: people (id (pk), firstname, lastname, spouse_id (fk)) The table was created as: CREATE TABLE people (id INT NOT NULL AUTO INCREMENT PRIMARY KEY, firstname VARCHAR(30), lastname VARCHAR (30), spouse id INT, CONSTRAINT spouse fk FOREIGN KEY (spouse id) REFERENCES people (id)); This is some sample data: Participation Activity 9 +---- | id | firstname | lastname | spouse_id | + 1 | Marty 2 | Jennifer | McFly | Parker | McFly | Tannen | McFly | | 3 | Lorraine 4 | Biff 5 | George NULL | NULL | 5 | NULL | 3 | +----+--
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