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 | CAMPER_LAST_NAME | CAMPER_FIRST_NAME | CAMPER_ADDRESS | CAMPER_CITY | CAMPER_STATE | CAMPER_ZIP_CODE | CAMPER_DRIVERS_LICENSE | CAMPER_EMAIL ||--------------|------------------|-------------------|----------------------|-------------|--------------|-----------------|------------------------|------------------------------------|| 1000 | Jones | Jamie | 1278 Essex Pl | Birmingham | AL | 45251 | JJ998743-98 | jjones@somewhere.com || 1001 | Schmidt | Pat | 4954 Spangled Way | El Paso | TX | 79919 | 87632434 | patwonderfu34l@nowhere.net || 1002 | Williams | Clifford | 956 Seagull Lane | Portland | ME | 4108 | WIL885123 | williams98342@foomail.com || 1003 | Cooper | Amanda | P. O. Box 998877 | Portsmouth | OH | 45662 | 765A876B897 | coopera@nowhere.net |### Table: Spot| SPOT_NUMBER | SPOT_NAME | SPOT_LENGTH | SPOT_PULLTHRU | SPOT_ELECTRIC_AMPS | SPOT_WATER | SPOT_SEWER | SPOT_RATE_WEEKDAY | SPOT_RATE_WEEKEND ||-------------|------------------|-------------|---------------|--------------------|------------|------------|-------------------|-------------------|| 101 | The Pines | 55 | 50 | 50 | 1 | 1 | 35 | 42 || 102 | The Glade | 50 | 0 | 0 | 1 | 1 | 33 | 44 || 103 | Teardrop Spot | 20 | 0 | 20 | 0 | 0 | 15 | 22 | ### Database Schema for a Camping Reservation SystemThis diagram illustrates the relationships among three entities for a Camping Reservation System: Camper, Reservation, and Spot.#### Entities and Attributes1. **Camper**: - **CAMPER_NUMBER** (Primary Key) - CAMPER_LAST_NAME - CAMPER_FIRST_NAME - CAMPER_ADDRESS - CAMPER_CITY - CAMPER_STATE - CAMPER_ZIP_CODE - CAMPER_DRIVERS_LICENSE - CAMPER_EMAIL2. **Reservation**: - **RESV_NUMBER** (Primary Key) - RESV_DATE - RESV_NIGHTS - SPOT_NUMBER (Foreign Key) - CAMPER_NUMBER (Foreign Key) - RESV_RATE - RESV_DEPOSIT3. **Spot**: - **SPOT_NUMBER** (Primary Key) - SPOT_NAME - SPOT_LENGTH - SPOT_FULLTHRU - SPOT_ELECTRIC_AMPS - SPOT_WATER - SPOT_SEWER - SPOT_RATE_WEEKDAY - SPOT_RATE_WEEKEND#### RelationshipsThe diagram uses various symbols to indicate the nature of the relationships between the entities:- The relationship between **Camper** and **Reservation** is a one-to-many relationship, meaning one camper can have multiple reservations, but each reservation is associated with only one camper.- The relationship between **Spot** and **Reservation** is also a one-to-many relationship, meaning one spot can be reserved multiple times by different campers, but each reservation involves only one spot.### Diagrams and Symbols- **Entity Boxes**: Each entity is represented by a box that includes its name at the top and its attributes listed below.- **Primary Key (PK)**: Attributes that uniquely identify a record in an entity are underlined.- **Foreign Key (FK)**: Attributes that create a link between entities and are written normally but are understood as keys connecting to another table.- **One-to-Many Relationship**: Represented by a line connecting two tables with a crow's foot at the end of the table that has the foreign key. This structured representation helps in understanding how data is organized and interconnected in the database, which is critical for designing and querying databases efficiently.

We need to identify the missing relationship symbol for the given diagram.

The following three tables make up a simple reservation system for a small campground. The database should allow for a camper to make multiple rese 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 patwonderfu341@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 SPOT_LENGTH 55 50 20 0 SPOT_PULLTHRU 1 0 0 0 SPOT_ELECTRIC AMPS 50 50 20 0 SPOT WATER 1 1 1 1 SPOT SEWER 1 1 0 0 SPOT_RATE_WEEKDAY 35 33 15 12 SPOT_RATE WEEKEND 42 42 22 15 Table: Reservation RESV_NUMBER 1 2 3 4 5 RESV_DATE 2015-05-15 2015-05-14 2015-05-14 2015-05-20 2016-06-01 RESV_NIGHTS 2 4 4 1 2 SPOT_NUMBER 101 103 104 101 101 CAMPER NUMBER 1002 1000 1001 1002 1002 RESV_RATE 84 150 24 35 85 RESV_DEPOSIT 20 25 24 10 0 Add the ends to the relations on the Crows Foot ERD for the campground reservation system.

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