Q3: Consider the following relation and by inspecting the types of dependencies, remove any redundanta inconsistent data. O_id O_date Cust_i Cust_na Cust_state Pro_id Pro_desc d 2001 10/12/20 4 Newyork 3,5,6 2002 10/11/20 S Ali Ahmed Chicago 2,4 Mouse, keyboard, Monitor Motherboard, DVD drive Pro_price Pro_quantit 2000, 1000, 2500 2800, 1500 y 2,1,5 3,4

Q3: Consider the following relation and by inspecting the types of dependencies, remove any redundanta inconsistent data. O_id O_date Cust_i Cust_na Cust_state Pro_id Pro_desc d 2001 10/12/20 4 Newyork 3,5,6 2002 10/11/20 S Ali Ahmed Chicago 2,4 Mouse, keyboard, Monitor Motherboard, DVD drive Pro_price Pro_quantit 2000, 1000, 2500 2800, 1500 y 2,1,5 3,4

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

See similar textbooks

Similar questions

q20
Using a normalised version of the Index metadata relation could have a negative impact on performance.
The following three tables make up a simple reservation system for a small campground. The database should allow for a camper to make multiple reservations for future dates and for a camping spot to have several reservations for upcoming visits. Table: Camper CAMPER_NUMBER 1000 1001 1002 1003 CAMPER_LAST_NAME Jones Schmidt Williams Cooper CAMPER_FIRST_NAME Jamie Pat Clifford Amanda CAMPER_ADDRESS 1278 Essex Pl 4954 Spangled Way 956 Segull Lane P. O. Box 998877 CAMPER_CITY Birmingham El Paso Portland Portsmouth CAMPER_STATE AL TX ME OH CAMPER_ZIP_CODE 45251 79919 4108 45662 CAMPER_DRIVERS_LICENSE JJ998743-98 87632434 WIL885123 765A876B897 CAMPER_EMAIL jjones@somewhere.com patwonderfu34l@nowhere.net williams98342@foomail.com coopera@nowhere.net Table: Spot SPOT_NUMBER 101 102 103 104 SPOT_NAME The Pines The Glade Teardrop Spot Tent In Trees…
The following relations are part of a general store database: customer(custnum, custname, city, creditlimit) orders(ordernum, orderdate, filled, custnum) orderline(ordernum, productnum, quantity, salesprice) product(productnum, descr, producttype, msrp, onhand) Here is a sample data (assume there are more records)Using PROJECT, SELECT and JOIN, write the sequence of operations to answer each of the following questions: 1a. What are the names and customer numbers of customers who are from Mississauga? 1b.What are the names of products (descry) and product types of products purchased by customers from brapton?
In the Testa EV database design described in the previous question, please complete a field specifications form for the field 'Model_Cost' of the table 'Model_T'. The field records the cost of producing a specific EV model. Because its data come from the cost data of specific parts used to build the model, its value can be entered later and editing is allowed (null is allowed). The field value is required. Only decimal numeric data are supported for the entered value. The field can store a maximum of 10 digits (including 2 decimal places). The user of the database (data analyst) is responsible for entering and maintaining the data. No specific range of values is specified for this field. You should enter 'N/A' (or leave it unchecked) for elements that are not applicable.
Explain the role of functional dependencies and candidate keys in normalization.