Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Q5. Map the following ER diagram into a relational schema and specify all primary keys and foreign keys. SHIP MOVEMENT Sname Owner N Pname HOME PORT 1 N HISTORY 1 SHIP PORT Latitude (0,*) (0,*) Time_stamp Longitude N SHIP AT PORT TYPE Figure 3 An ER schema for a SHIP_TRACKING database. N N (1,1) IN ON Date Time 1 1 Type Tonnage SHIP TYPE Start_date End_date PORT VISIT Name Hull STATE/COUNTRY Name SEA/OCEAN/LAKE Continent 1
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Transcribed Image Text:Q5. Map the following ER diagram into a relational schema and specify all primary keys and foreign keys. SHIP MOVEMENT Sname Owner N Pname HOME PORT 1 N HISTORY 1 SHIP PORT Latitude (0,*) (0,*) Time_stamp Longitude N SHIP AT PORT TYPE Figure 3 An ER schema for a SHIP_TRACKING database. N N (1,1) IN ON Date Time 1 1 Type Tonnage SHIP TYPE Start_date End_date PORT VISIT Name Hull STATE/COUNTRY Name SEA/OCEAN/LAKE Continent 1
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Step 1: Defining ER Diagram and Relational Schema
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Step 2: Providing Relational schema with primary keys (PK) and foreign keys (FK)
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