conver er model to relation model please draw the answer as digram Mapping ExerciseExercise 7.4.DateFIGURE 7.7TimestampAn ER schema for aSHIP_TRACKINGTimeSHIP_MOVEMENTLongitudedatabase.NLatitudeHISTORYТуреTonnageHullSNameSHIPTYPESHIP_TYPEOwner(0,")StartDateEndDateHOME_PORT(1,1)NameVISITSVISITSContinent(0,")NINSTATE/COUNTRYPNamePORTNameN1ONSEAVOCEANLAKESlide 7-35

Answered: Image /qna-images/answer/d9a98e8c-9541-4511-a2fd-eb2e8c878f36.jpg

Mapping Exercise Exercise 7.4. Date FIGURE 7.7 Timestamp An ER schema for a SHIP_TRACKING Time SHIP_MOVEMENT Longitude database. Latitude HISTORY Туре Tonnage Hull SName N 1 SHIP TYPE SHIP_TYPE Owner (0,") StartDate EndDate HOME_PORT (1,1) Name VISITS VISITS Continent (0,") N IN STATE/COUNTRY PName PORT Name ON SEAVOCEANLAKE

Mapping Exercise Exercise 7.4. Date FIGURE 7.7 Timestamp An ER schema for a SHIP_TRACKING Time SHIP_MOVEMENT Longitude database. Latitude HISTORY Туре Tonnage Hull SName N 1 SHIP TYPE SHIP_TYPE Owner (0,") StartDate EndDate HOME_PORT (1,1) Name VISITS VISITS Continent (0,") N IN STATE/COUNTRY PName PORT Name ON SEAVOCEANLAKE

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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Question

conver er model to relation model

please draw the answer as digram

Mapping Exercise
Exercise 7.4.
Date
FIGURE 7.7
Timestamp
An ER schema for a
SHIP_TRACKING
Time
SHIP_MOVEMENT
Longitude
database.
N
Latitude
HISTORY
Туре
Tonnage
Hull
SName
SHIP
TYPE
SHIP_TYPE
Owner
(0,")
StartDate
EndDate
HOME_PORT
(1,1)
Name
VISITS
VISITS
Continent
(0,")
N
IN
STATE/COUNTRY
PName
PORT
Name
N
1
ON
SEAVOCEANLAKE
Slide 7-35

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Step 1: Identify all the regular entity types:

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Identify All the Weak Entity Types:

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Step 3: Draw the ER diagram mapping all foreign keys, binary relationships, 1:N & M:N relationships

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