JOIN Quiz

JOIN quiz

1. Which of following would show all the previous men's singles table tennis gold medalists?

	SELECT country.name, color FROM ttms JOIN country ON (ttms.country=country.id) WHERE color = 'gold'
	SELECT who, country.name, color FROM ttms JOIN country (ttms.country=country.id) WHERE color = 'gold'
	SELECT who, country.name, color FROM ttms JOIN country ON (ttms.country=country.id) WHERE color = 'gold'
	SELECT who, country.name, color FROM ttms JOIN country ON (ttms.country=country.id) WHERE color = 'silver'
	SELECT who, country.name, color FROM ttms JOIN country WITH (ttms.country=country.id) WHERE color = 'gold'

2. Which of the following shows the chinese woman's singles winners in the Seoul and Barcelona games?

	SELECT city FROM ttws JOIN games ON (ttws.games=games.yr) WHERE city IN ('Barcelona', 'Seoul') AND ttws.country = 'CHN'
	SELECT who, city FROM ttws JOIN games IN (ttws.games=games.yr) WHERE city IN ('Barcelona', 'Seoul') AND ttws.country = 'CHN'
	SELECT who, city FROM ttws JOIN games ON (ttws.games=games.yr) WHERE city IN ('Barcelona', 'Atlanta') AND ttws.country = 'CHN'
	SELECT who, city FROM ttws JOIN games ON (ttws.games=games.yr) WHERE city IN ('Barcelona', 'Seoul') AND ttws.country = 'CHN'
	SELECT who, city FROM ttws JOIN games ON (ttws.games=games.yr) WHERE city IN ('Beijing', 'Seoul') AND ttws.country = 'CHN'

3. Which of these shows the korean women's singles winners in order of medal achieved(Ascending order)?

	SELECT ttws.country, city, color FROM ttws JOIN games ON (ttws.games=games.yr) WHERE ttws.country = 'CHN' ORDER BY color ASC
	SELECT who, ttws.country, city, color FROM ttws JOIN games ON (ttws.games=games.yr) WHERE ttws.country = 'CHN' ORDER BY color ASC
	SELECT who, ttws.country, city, color FROM ttws JOIN games ON (ttws.games=games.yr) WHERE ttws.country = 'CHN' ORDER BY country ASC
	SELECT who, ttws.country, city, color FROM ttws JOIN games ON (ttws.games=games.yr) WHERE ttws.country = 'CHN' ORDER BY color DESC
	SELECT who, ttws.country, city, color FROM ttws JOIN games ON (ttws.games=games.yr) WHERE who = 'CHN' ORDER BY color ASC

4. Which of these shows the gold medalists for the men's doubles from 1992 to 2000?

	SELECT name, color, games FROM ttmd JOIN team ON team=team.id WHERE color='gold' AND games BETWEEN 1992 and 2000
	SELECT name, color, games FROM ttmd JOIN team ON team=team.id WHERE color='gold' AND games BETWEEN 2092 and 3000
	SELECT name, color, games FROM ttmd JOIN team ON team=team.id WHERE color='gold' AND WHERE games BETWEEN 1992 and 2000
	SELECT name, color, games FROM ttmd JOIN team ON team=team.id WHERE color='silver' AND games BETWEEN 1992 and 2000
	SELECT name, color, games FROM ttmd JOIN team WITH team=team.id WHERE color='gold' AND games BETWEEN 1992 and 2000

5. Which of the following shows the men's doubles chinese gold medalists who have names beginning with w?

	SELECT FROM ttmd JOIN team ON team=team.id WHERE country = 'CHN' AND color = 'gold' AND name LIKE 'W%'
	SELECT name, color, country FROM ttmd JOIN team ON team=team.id WHERE country = 'CHN' AND color = 'gold' AND name IN 'W%'
	SELECT name, color, country FROM ttmd JOIN team ON team=team.id WHERE country = 'CHN' AND color = 'gold' AND name LIKE '%W'
	SELECT name, color, country FROM ttmd JOIN team ON team=team.id WHERE country = 'CHN' AND color = 'gold' AND name LIKE 'W%'
	SELECT name, color, country FROM ttmd JOIN team ON team=team.id WHERE country = 'CHN' AND color = 'silver' AND name LIKE 'W%'

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