Database 371 Final Presentation

Hockey
By Sara Borlak, Cindy Tu, and Justine
Wendland

What are the birth cities of players who have played in the league for at least 15 years?
Of these birth cities, how many such players has each produced? Only show birth cities
having produced more than two such players.
SELECT birthcity, COUNT(playerID) numplayers
FROM
(SELECT playerID, COUNT(DISTINCT year) numyears, birthcity
FROM Scoring JOIN Master USING (playerID)
WHERE GP>0
GROUP BY 1, 3
HAVING numyears>=15)
GROUP BY birthcity
HAVING numplayers>2
ORDER BY 2 DESC;
sub-query to find playerIDs
associated with at least 15
active years of game play

Note that the top two cities are Montreal and Toronto, where Montreal has produced
more than twice as many long-term players.

Compare previous result to:
Number of players born in each city
SELECT birthcity, COUNT(playerID)
FROM Master
WHERE birthcity IS NOT NULL
GROUP BY birthcity
ORDER BY 2 DESC
LIMIT 30;

Toronto has produced over 100 more players than Montreal, but approximately half as
many long-term players.

Show the breakdown of country of
origin for the Players that have made
it to the Hall of Fame
SELECT birthCountry, COUNT(hofID) AS Hall_of_Fame_Player
FROM HOF JOIN Master USING(hofID)
WHERE birthCountry IS NOT NULL
GROUP BY birthCountry;

Number of Players in each Country
who made it into the Hall of Fame

Find the number of Canadian Hall of Famers per
province, then group them by categories
SELECT birthState,
SUM(CASE WHEN category=’Player’ THEN 1 ELSE 0 END) AS numPlayer,
SUM(CASE WHEN category=Builder’ THEN 1 ELSE 0 END) AS numBuilder,
SUM(CASE WHEN category=’Referee/Linesman’ THEN 1 ELSE 0 END) AS
numRef
FROM HOF JOIN Master USING(hofID)
WHERE birthCountry=’Canada’
GROUP BY birthState;

The Number of Players, Referees and Linesman in
each Province in Canada who have been inducted
into the Hockey Hall of Fame

Relationship between
Players, Awards, and Coaches

Show top 20 coaches that produced the highest number of
awarded players. Show also, their years of coaching
experience.
CREATE VIEW PlayerTeamYear AS
SELECT m.playerID, m.firstName, m.lastName, s.tmID, s.lgID, s.year
FROM Scoring s JOIN Master m USING (playerID);

SELECT coachID, m.firstName, m.lastName, COUNT(DISTINCT a.playerID)
AS NumPlayersCoached, COUNT(DISTINCT c.year) AS Experience
FROM AwardsPlayers a JOIN PlayerTeamYear p USING(playerID)
JOIN Coaches c USING(tmID, lgID, year)
JOIN Master m USING (coachID)
GROUP BY coachID, m.firstName, m.lastName
ORDER BY CntPlayersCoached DESC
LIMIT 20;
Show top 20 coaches that produced the highest number of
awarded players. Show also, their years of coaching
experience.

Database 371 Final Presentation

Show the Top20 player who has been awarded with the
most awards with their ages.
CREATE VIEW Top20Players AS
SELECT lastName, firstName, COUNT(award) AS NumAwards,
CASE WHEN deathYear IS NOT NULL THEN (deathyear - birthYear)
ELSE (strftime('%Y', 'now') - birthYear) END AS Age
FROM Master JOIN AwardsPlayers using (playerID)
GROUP BY lastName, firstName
ORDER BY NumAwards DESC
LIMIT 20;

Show all the Coaches these Top20 Awarded players
have worked with.
SELECT a.playerID, p.firstName, p.lastName, coachID, m.firstName, m.lastName
FROM AwardsPlayers a JOIN PlayerTeamYear p USING (playerID)
JOIN Coaches c USING (tmID, lgID, year)
JOIN Master m USING (coachID)
WHERE p.lastName IN (SELECT lastName FROM Top20players) AND
p.firstName IN (SELECT firstName FROM Top20players)
GROUP BY a.playerID, coachID
ORDER BY p.firstName, p.lastName

Who are the
coaches of the
most awarded
player?
The success of Wayne
Gretzky was shaped by
33 different coaches!

Most prestigious coach
Scotty Bowman has taught 6 of the Top 20
players with the most awards in all times.

Database 371 Final Presentation

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Database 371 Final Presentation