WPCC Database Design

6 7 - 2 0 2 P r o j e c t : : A p p l i c a t i o n D e s i g n a n d D e v e l o p m e n t

Noah Levin Creating an Entity Relationship Diagram, Database Design, and Database Dictionary for the Western Pennsylvania Chess Club (WPCC) online website.

Fall 08

Phase 1: Basic Data Modeling

Phase 1: Table of Contents Noah Levin

67-272 Project Fall 2008

Table of Contents

Entity-Relationship Diagram .............................................................................. 1

Database Design ................................................................................................. 2

Database Dictionary............................................................................................ 3 Families ....................................................................................................................................... 3

Addresses ..................................................................................................................................... 3

Students .................................................................................................................................... 3, 4

Tournament Registrations............................................................................................................ 4

Tournaments ................................................................................................................................ 4

Sections ........................................................................................................................................ 5

Class Registrations ...................................................................................................................... 5

Classes ...................................................................................................................................... 5,6

Locations...................................................................................................................................... 6

Instructor Registrations ............................................................................................................... 7

Instructors .................................................................................................................................... 7

Entity Relationship Diagram Noah Levin


1

v

Bold + Underlined: Primary Key

Italics: Foreign Key

Database Design Noah Levin


2

Database Design in 3NF

Families (family_id, student_id, address_id, login, password, parent_first_name,

parent_last_name, phone, email)

Addresses (address_id, street_1, street_2, city, state, zip)

Students (student_id, family_id, first_name, last_name, grade, date_of_birth, rank,

rating, enroll_status)

Tournament_Registrations (registration_id, student_id, tournament_id)

Tournaments (tournament_id, section_id, location_id, name, date, entry_fee, blurb)

Sections (section_id, tournament_id, student_id, name, rating_min, rating_max,

clock_type)

Class_Registrations (registration_id, student_id, class_id, waitlist)

Classes (class_id, instruction_id, location_id, lead_instructor, title, blurb, start_date,

end_date, start_time, end_time, class_size)

Locations (location_id, name, facility_type, street_1, street_2, city, state, zip, lat,

lon)

Instructor_Registrations (registration_id, instruction_id, class_id)

Instructors (instructor_id, first_name, last_name, bio, picture, email, phone)

Underlines:

Solid underlined fields are primary keys; Dotted underlined fields are foreign keys;

Double underlined fields are composite keys that are both primary and foreign keys.

Database Design Notes:

1. Enroll status refers to whether a student has withdrawn from the WPCC or not.

2. A blub refers to a short description about an entity.

Data Dictionary Noah Levin


3

Families

Field Data Type Description Example Data

family_id (pk) INT The ID for this table (Required; auto-increment)

2

student_id (fk) INT The ID of any student(s) in the family.

2

address_id (fk) INT The ID of the family’s address (Req.)

2

login VARCHAR(10)

A form of ID that the family uses to login to the WPCC web page (Req.)

chess_champ

password VARCHAR(12)

Password for the family’s login to the WPCC web page (Req; 4 – 12 characters

abc123

parent_first_name CHAR(12) First name of the primary parent of a family (Req.)

Jane

parent_last_name CHAR(12) Last name of the primary parent (Req.)

Smith

phone INT(10) Family phone number (Req.) 412-555-2131

email VARCHAR(40)

Family email. Used to verify account and often used to contact a family (Req.)

[email protected]

Addresses


address_id (pk) INT The ID for this table (Required; auto-increment)

2

street_1 VARCHAR(50) Primary street address line (Req.)

5000 Forbes Ave

street_2 VARCHAR(50) Secondary street address line SMC 1234

city CHAR(15) Name of the city. (Req.) Pittsburgh

state CHAR(2) Abbreviation of the state (Req.) PA

zip INT Zip code of the city (Req.) 15238

Students


student_id (pk) INT The ID for this table (Required; auto-increment)

2

family_id (fk) INT The ID of the student’s family (Required)

2



4

first_name CHAR(12) Student’s first name John

last_name CHAR(12) Student’s last name Smith

grade INT(10) Student’s grade in school (Req.; 0-12, 0 = Kindergarden)

6

date_of_birth DATE Date of birth, used to determine Student’s age (Req.)

02-25-88

rank INT USCF Ranking 120

rating INT USCF Rating 765

enroll_status BIT 1 if active; 0 if withdrawn 1

Tournament_Registrations


registration_id (pk) INT The ID for this table (Required;

auto-increment) 2

student_id (fk) INT The ID for the student

registering 2

tournament_id (fk) INT Minimum rating of student.

Cannot be < 0 (Required) 2

Tournaments


tournament_id (pk) INT The ID for this table (Required; auto-increment)

2

section_id (fk) INT The name of the curriculum (Required)

2

location_id (fk) INT

The ID of the location where the tournament is taking place (Req.)

2

name VARCHAR(50) Title of the tournament (Req.) Christmas Chess Tourney

date DATE Date of the tournament (Req.) 02-25-2008

entry_fee SMALLMONEY Cost of entry for the tournament. (Req.)

15

blurb VARCHAR(500) Brief summary of the tournament.

In each section, trophies to top 5 players. All players tied for ribbons will

receive one.



5

Sections


section_id (pk) INT The ID for this table (Required; auto-increment)

2

tournament_id (fk) INT The ID of the tournament the section is in (Req.)

2

student_id (fk) INT The ID for the student(s) enrolled in the section

2

name VARCHAR(50) Name of the section (Req.) K-5 Beginners

rating_min INT(4) Minimum rating to play in the section (Req.)

0

rating_max INT(4) Maximum rating to play in the section (Req.)

499

clock_type VARCHAR(4) Time controls (Req.) G/30

Class_Registrations


registration_id (pk) INT The ID for this table (Required; auto-increment)

2

student_id (fk) INT The ID for the student

registering for the class (Req.) 2

class_id (fk) INT

The ID for the class the student

or instructor is registering for (Req.)

2

waitlist BIT 1 if waitlisted; 0 if enrolled 0

Classes


class_id (pk) INT The ID for this table (Required; auto-increment)

2

intruction_id (fk) INT The ID for the instructor(s) teaching the course (Req.)

2

location_id (fk) INT The ID for the location of the course. (Req.)

2

lead_instructor CHAR(25) Name of the instructor assigned to lead role. (Req.)

Bobby Fischer

title VARCHAR(50) Title of the chess class (Req.) Opening Moves 101



6

blurb VARCHAR(500)

Brief summary of the class. Often includes information about recommended skill levels.

This class teaches gives a basic introduction to strategic opening moves in chess.

Recommended for all skill levels.

start_date DATE Date of the first class (Req.) 02/02/08

end_date DATE Date of the last class (Req.) 02/25/08

start_time TIME Time the class begins for a

given class day (Req.) 7:00 PM

end_time TIME Time the class ends for a given class day (Req.)

9:30 PM

class_size TINYINT

Maximum occupancy of the class. Often based on location.

(Req.)

15

Locations


location_id (pk) INT The ID for this table (Required; auto-increment)

2

name VARCHAR(50) Name of the location (Req.) Carnegie Library of Pittsburgh: Sq. Hill

facility_type CHAR(10)

The type of facility for the location (Req; Examples: Library, Church, University)

Library

street_1 VARCHAR(30) Primary Address Line of the location (Req.)

5801 Forbes Ave

street_2 VARCHAR(30) Secondary Address Line of the location

P.O. Box 2051

city CHAR(15) City of the location (Req.) Pittsburgh

state CHAR(2) Abbreviation for the State of the location (Req.)

PA

zip INT Zip code of the location (Req.) 15217

lat INT Latitude coordinates of the location

40.576586

lon INT Longitude coordinates of the location

-80.076606



7

Instructor_Registrations


registration_id (pk) INT The ID for this table (Required; auto-increment)

2

instruction_id (fk) INT

The ID of the instructor

registering to teach the class (Req.)

2

class_id INT

The ID of the class the instructor is registering to teach (Req.)

2

Instructor


instructor_id (pk) INT The ID for this table (Required; auto-increment)

2

first_name VARCHAR(25) First name of the instructor (Req.)

Bobby

last_name VARCHAR(25) Last name of the instructor (Req.)

Fischer

bio VARCHAR(500) Short biography about the instructor.

Bobby Fischer is an American-born chess Grandmaster, and the eleventh World Chess

Champion.

picture IMAGE Picture of the instructor photo.jpg

email VARCHAR(40)

Email of the instructor (Req; method of contact is necessary if a registered student/parent has questions)

[email protected]

phone INT(10) Phone number of the instructor 412-555-2131

WPCC Database Design

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