Difference between revisions of "JOIN Quiz"

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JOIN quiz
 
JOIN quiz
<quiz shuffle=none display=simple>
+
<div class="ref_section">
{Select the code which shows '''player''' and '''mdate''' for players which scored during 9th June 2012 to 11th June 2012.
+
<table class='db_ref'>
|type="()"}
+
<caption>game</caption>
- SELECT player, mdate FROM goal JOIN eteam ON (teamname=id) WHERE mdate IN ('9 June 2012','10 June 2012','11 June 2012')
+
<tr>
- SELECT player, mdate FROM goal JOIN game ON (matchid=id) WHERE mdate IN ('9 July 1912','10 July 1912','11 July 1912')
+
<th>id</th>
+ SELECT player, mdate FROM goal JOIN game ON (matchid=id) WHERE mdate IN ('9 June 2012','10 June 2012','11 June 2012')
+
<th>mdate</th>
- SELECT player, mdate FROM goal JOIN game ON (matchid=id) WHERE mdate LIKE ('9 June 2012','10 June 2012','11 June 2012')
+
<th>stadium</th>
- SELECT stadium, mdate FROM goal JOIN game ON (matchid=id) WHERE mdate IN ('9 June 2012','10 June 2012','11 June 2012')
+
<th>team1</th>
 +
<th>team2</th>
 +
</tr>
 +
<tr>
 +
<td>1001</td>
 +
<td>8 June 2012</td>
 +
<td>National Stadium, Warsaw</td>
 +
<td>POL</td>
 +
<td>GRE</td>
 +
</tr>
 +
<tr>
 +
<td>1002</td>
 +
<td>8 June 2012</td>
 +
<td>Stadion Miejski (Wroclaw)</td>
 +
<td>RUS</td>
 +
<td>CZE</td>
 +
</tr>
 +
<tr>
 +
<td>1003</td>
 +
<td>12 June 2012</td>
 +
<td>Stadion Miejski (Wroclaw)</td>
 +
<td>GRE</td>
 +
<td>CZE</td>
 +
</tr>
 +
<tr>
 +
<td>1004</td>
 +
<td>12 June 2012</td>
 +
<td>National Stadium, Warsaw</td>
 +
<td>POL</td>
 +
<td>RUS</td>
 +
</tr>
 +
<tr>
 +
<td colspan='5'>...</td>
 +
</tr>
 +
</table>
  
{Select the code which shows '''player''', '''coach''' and '''COUNT(*)''' for players who scored in the first half of a match (0 - 45 minutes).
+
<table class='db_ref'>
|type="()"}
+
<caption>goal</caption>
- SELECT player, coach, COUNT(*) FROM goal JOIN eteam ON (id=teamid) WHERE gtime > 0 AND gtime < 45
+
<tr>
+ SELECT player, coach, COUNT(*) FROM goal JOIN eteam ON (id=teamid) WHERE gtime > 0 AND gtime < 45 GROUP BY player
+
<th>matchid</th>
- SELECT player, coach, COUNT(*) FROM goal JOIN eteam ON (id=teamid) WHERE gtime < 0 AND gtime > 45 GROUP BY player
+
<th>teamid</th>
- SELECT player, coach, COUNT(*) FROM goal JOIN eteam ON (id=teamid) WHERE gtime > 0 AND gtime < 90 GROUP BY player
+
<th>player</th>
- SELECT player, stadium, COUNT(*) FROM goal JOIN game ON (id=matchid) WHERE gtime > 0 AND gtime < 45 GROUP BY player
+
<th>gtime</th>
 +
</tr>
 +
<tr>
 +
<td>1001</td>
 +
<td>POL</td>
 +
<td>Robert Lewandowski</td>
 +
<td>17</td>
 +
</tr>
 +
<tr>
 +
<td>1001</td>
 +
<td>GRE</td>
 +
<td>Dimitris Salpingidis</td>
 +
<td>51</td>
 +
</tr>
 +
<tr>
 +
<td>1002</td>
 +
<td>RUS</td>
 +
<td>Alan Dzagoev</td>
 +
<td>15</td>
 +
</tr>
 +
<tr>
 +
<td>1001</td>
 +
<td>RUS</td>
 +
<td>Roman Pavlyuchenko</td>
 +
<td>82</td>
 +
</tr>
 +
<tr>
 +
<td colspan='5'>...</td>
 +
</tr>
 +
</table>
  
{Select the code which shows players, their team and the amount of goals they scored against Greece(GRE).
+
<table class='db_ref'>
|type="()"}
+
<caption>eteam</caption>
+ SELECT player, COUNT(*), teamid FROM game JOIN goal ON matchid = id WHERE (team1 = "GRE" OR team2 = "GRE") AND teamid != 'GRE' GROUP BY player
+
<tr>
- SELECT player, COUNT(*), teamid FROM game JOIN goal ON matchid = id WHERE (team1 = "GRE") AND teamid != 'GRE' GROUP BY player
+
<th>id</th>
- SELECT player, COUNT(*), teamid FROM game JOIN goal ON matchid = id WHERE (team1 = "POL" OR team2 = "POL") AND teamid != 'POL' GROUP BY player
+
<th>teamname</th>
- SELECT player, COUNT(*), teamid FROM game JOIN goal WITH matchid = id WHERE (team1 = "GRE" OR team2 = "GRE") AND teamid != 'GRE' GROUP BY player
+
<th>coach</th>
- SELECT player, teamid FROM game JOIN goal ON matchid = id WHERE (team1 = "GRE" OR team2 = "GRE") AND teamid != 'GRE' GROUP BY player
+
</tr>
 +
<tr>
 +
<td>POL</td>
 +
<td>Poland</td>
 +
<td>Franciszek Smuda</td>
 +
</tr>
 +
<tr>
 +
<td>RUS</td>
 +
<td>Russia</td>
 +
<td>Dick Advocaat</td>
 +
</tr>
 +
<tr>
 +
<td>CZE</td>
 +
<td>Czech Republic</td>
 +
<td>Michal Bilek</td>
 +
</tr>
 +
<tr>
 +
<td>GRE</td>
 +
<td>Greece</td>
 +
<td>Fernando Santos</td>
 +
</tr>
 +
<tr>
 +
<td colspan='5'>...</td>
 +
</tr>
 +
</table>
 +
</div>
 +
<div class=quiz>
 +
<div class=q>You want to find the stadium where player 'Dimitris Salpingidis' scored. Select the JOIN condition to use:
 +
<syntaxhighlight class=d lang='sql'> eteam JOIN game ON (id=team1) </syntaxhighlight>
 +
<syntaxhighlight class=d lang='sql'> eteam JOIN game ON (id=team2) </syntaxhighlight>
 +
<syntaxhighlight class=d lang='sql'> eteam JOIN goal ON (teamid=id) </syntaxhighlight>
 +
<syntaxhighlight class='d y' lang='sql'> game JOIN goal ON (id=matchid) </syntaxhighlight>
 +
<syntaxhighlight class=d lang='sql'> game JOIN goal ON (team1=teamid OR team2=teamid) </syntaxhighlight>
 +
</div>
  
{Select the code which would show the player and their team for those who have scored against Poland(POL) in National Stadium, Warsaw.
+
<div class=q>You JOIN the tables '''goal''' and '''eteam''' in an SQL statement. Indicate the list of column names that may be used in the SELECT line:
|type="()"}
+
<syntaxhighlight class=d lang='sql'> gtime, mdate, stadium, matchid </syntaxhighlight>
- SELECT DISTINCT player, teamid FROM game JOIN goal ON matchid = id WHERE stadium = 'National Stadium, Warsaw' AND mdate IN (SELECT mdate FROM game WHERE team1 = 'GER' OR team2 = 'GER')AND teamid != 'GER'
+
<syntaxhighlight class=d lang='sql'> mdate, stadium, id </syntaxhighlight>
+ SELECT DISTINCT player, teamid FROM game JOIN goal ON matchid = id WHERE stadium = 'National Stadium, Warsaw' AND mdate IN (SELECT mdate FROM game WHERE team1 = 'POL' OR team2 = 'POL')AND teamid != 'POL'
+
<syntaxhighlight class='d y' lang='sql'> matchid, teamid, player, gtime, id, teamname, coach </syntaxhighlight>
- SELECT DISTINCT player, teamid FROM game JOIN goal ON matchid = id WHERE stadium = 'National Stadium, Warsaw' AND teamid != 'POL'
+
<syntaxhighlight class=d lang='sql'> matchid, teamid, player, gtime, mdate, stadium, team1 </syntaxhighlight>
- SELECT DISTINCT player, teamid FROM game JOIN goal ON matchid = id WHERE stadium = 'Stadion Miejski (Wroclaw)' AND mdate IN (SELECT mdate FROM game WHERE team1 = 'POL' OR team2 = 'POL')AND teamid != 'POL'
+
<syntaxhighlight class=d lang='sql'> stadium, team1, team2 </syntaxhighlight>
- SELECT DISTINCT stadium, mdate FROM game JOIN goal ON matchid = id WHERE stadium = 'National Stadium, Warsaw' AND mdate IN (SELECT mdate FROM game WHERE team1 = 'POL' OR team2 = 'POL')AND teamid != 'POL'
+
</div>
  
{Which of the following shows the men's doubles chinese gold medalists who have names beginning with w?
+
<div class=q>Select the code which shows players, their team and the amount of goals they scored against Greece(GRE).
|type="()"}
+
<syntaxhighlight class='d y' lang='sql'>
- SELECT FROM ttmd JOIN team ON team=team.id WHERE country = 'CHN' AND color = 'gold' AND name LIKE 'W%'
+
SELECT player, teamid, COUNT(*)
- SELECT name, color, country FROM ttmd JOIN team ON team=team.id WHERE country = 'CHN' AND color = 'gold' AND name IN 'W%'
+
  FROM game JOIN goal ON matchid = id
- SELECT name, color, country FROM ttmd JOIN team ON team=team.id WHERE country = 'CHN' AND color = 'gold' AND name LIKE '%W'
+
WHERE (team1 = "GRE" OR team2 = "GRE")
+ SELECT name, color, country FROM ttmd JOIN team ON team=team.id WHERE country = 'CHN' AND color = 'gold' AND name LIKE 'W%'
+
  AND teamid != 'GRE'
- SELECT name, color, country FROM ttmd JOIN team ON team=team.id WHERE country = 'CHN' AND color = 'silver' AND name LIKE 'W%'
+
GROUP BY player, teamid </syntaxhighlight>
</quiz>
+
<syntaxhighlight class=d lang='sql'>
 +
SELECT player, teamid, COUNT(*)
 +
  FROM game JOIN goal ON matchid = id
 +
WHERE (team1 = "GRE") AND teamid != 'GRE'
 +
GROUP BY player, teamid </syntaxhighlight>
 +
<syntaxhighlight class=d lang='sql'>
 +
SELECT player, teamid, COUNT(*)
 +
  FROM game JOIN goal ON matchid = id
 +
WHERE (team1 = "POL" OR team2 = "POL")
 +
  AND teamid != 'POL'
 +
GROUP BY player, teamid </syntaxhighlight>
 +
<syntaxhighlight class=d lang='sql'>
 +
SELECT player, teamid, COUNT(*)
 +
  FROM game JOIN goal WITH matchid = id
 +
WHERE (team1 = "GRE" OR team2 = "GRE")
 +
  AND teamid != 'GRE'
 +
GROUP BY player, teamid </syntaxhighlight>
 +
<syntaxhighlight class=d lang='sql'>
 +
SELECT player, teamid
 +
  FROM game JOIN goal ON matchid = id
 +
WHERE (team1 = "GRE" OR team2 = "GRE")
 +
  AND teamid != 'GRE'
 +
GROUP BY player, teamid </syntaxhighlight>
 +
</div>
 +
 
 +
<div class=q>Select the result that would be obtained from this code: <source lang=sql>
 +
SELECT DISTINCT teamid, mdate
 +
  FROM goal JOIN game on (matchid=id)
 +
WHERE mdate = '9 June 2012'</source>
 +
<table class='d y'><tr><td>DEN</td><td>9 June 2012</td></tr><tr><td>GER</td><td>9 June 2012</td></tr></table>
 +
<table class=d><tr><td>DEN</td></tr><tr><td>GER</td></tr></table>
 +
<table class=d><tr><td>DEN</td><td>9 June 2012</td></tr><tr><td>DEN</td><td>9 June 2012</td></tr><tr><td>POL</td><td>9 June 2012</td></tr><tr><td>RUS</td><td>9 June 2012</td></tr></table>
 +
<table class=d><tr><td>GRE</td></tr><tr><td>CZE</td></tr><tr><td>POL</td></tr><tr><td>RUS</td></tr></table>
 +
<table class=d><tr><td>RUS</td><td>9 June 2012</td></tr><tr><td>GRE</td><td>9 June 2012</td></tr><tr><td>RUS</td><td>9 June 2012</td></tr><tr><td>CZE</td><td>9 June 2012</td></tr></table>
 +
</div>
 +
 
 +
<div class=q>Select the code which would show the player and their team for those who have scored against Poland(POL) in National Stadium, Warsaw.
 +
 
 +
<syntaxhighlight class=d lang='sql'>
 +
  SELECT DISTINCT player, teamid
 +
  FROM game JOIN goal ON matchid = id  
 +
  WHERE stadium = 'National Stadium, Warsaw'  
 +
AND (team1 = 'GER' OR team2 = 'GER')
 +
  AND teamid != 'GER' </syntaxhighlight>
 +
<syntaxhighlight class='d y' lang='sql'>
 +
  SELECT DISTINCT player, teamid
 +
  FROM game JOIN goal ON matchid = id
 +
  WHERE stadium = 'National Stadium, Warsaw'
 +
AND (team1 = 'POL' OR team2 = 'POL')
 +
  AND teamid != 'POL' </syntaxhighlight>
 +
<syntaxhighlight class=d lang='sql'>
 +
SELECT DISTINCT player, teamid
 +
  FROM game JOIN goal ON matchid = id
 +
  WHERE stadium = 'National Stadium, Warsaw' AND teamid != 'POL' </syntaxhighlight>
 +
<syntaxhighlight class=d lang='sql'>
 +
SELECT DISTINCT player, teamid
 +
  FROM game JOIN goal ON matchid = id
 +
  WHERE stadium = 'Stadion Miejski (Wroclaw)'
 +
AND (team1 = 'POL' OR team2 = 'POL')
 +
  AND teamid != 'POL' </syntaxhighlight>
 +
<syntaxhighlight class=d lang='sql'>
 +
SELECT DISTINCT stadium, mdate
 +
  FROM game JOIN goal ON matchid = id
 +
  WHERE stadium = 'National Stadium, Warsaw'
 +
AND (team1 = 'POL' OR team2 = 'POL')
 +
  AND teamid != 'POL' </syntaxhighlight>
 +
</div>
 +
 
 +
<div class=q>Select the code which shows the player, their team and the time they scored, for players who have played in Stadion Miejski (Wroclaw) but not against Italy(ITA).
 +
<syntaxhighlight class=d lang='sql'>
 +
SELECT DISTINCT player, teamid, gtime
 +
  FROM game JOIN goal ON matchid = id
 +
WHERE stadium = 'National Stadium, Warsaw'
 +
  AND (( teamid = team2 AND team1 != 'ITA') OR ( teamid = team1 AND team2 != 'ITA'))
 +
</syntaxhighlight>
 +
<syntaxhighlight class=d lang='sql'>
 +
SELECT DISTINCT player, teamid, gtime
 +
  FROM game JOIN goal ON matchid = id
 +
WHERE stadium = 'Stadion Miejski (Wroclaw)'
 +
  AND (( teamid = team2 AND team1 != 'ESP') OR ( teamid = team1 AND team2 != 'ESP'))
 +
</syntaxhighlight>
 +
<syntaxhighlight class='d y' lang='sql'>
 +
SELECT DISTINCT player, teamid, gtime
 +
  FROM game JOIN goal ON matchid = id
 +
WHERE stadium = 'Stadion Miejski (Wroclaw)'
 +
  AND (( teamid = team2 AND team1 != 'ITA') OR ( teamid = team1 AND team2 != 'ITA'))
 +
</syntaxhighlight>
 +
<syntaxhighlight class=d lang='sql'>
 +
SELECT DISTINCT teamid, gtime
 +
  FROM game JOIN goal ON matchid = id
 +
WHERE stadium = 'Stadion Miejski (Wroclaw)'
 +
  AND (( teamid = team2 AND team1 != 'ITA') OR ( teamid = team1 AND team2 != 'ITA'))
 +
</syntaxhighlight>
 +
<syntaxhighlight class=d lang='sql'>
 +
SELECT DISTINCT player, teamid, gtime
 +
  FROM game JOIN goal ON matchid = id
 +
WHERE team1 != 'ITA' AND team2 !='ITA' </syntaxhighlight>
 +
</div>
 +
 
 +
<div class=q>Select the result that would be obtained from this code: <source lang=sql>
 +
SELECT teamname, COUNT(*)
 +
  FROM eteam JOIN goal ON teamid = id
 +
GROUP BY teamname
 +
HAVING COUNT(*) < 3</source>
 +
<table class=d><tr><td>2</td></tr><tr><td>2</td></tr><tr><td>1</td></tr><tr><td>2</td></tr></table>
 +
<table class='d y'><tr><td>Netherlands</td><td>2</td></tr><tr><td>Poland</td><td>2</td></tr><tr><td>Republic of Ireland</td><td>1</td></tr><tr><td>Ukraine</td><td>2</td></tr></table>
 +
<table class=d><tr><td>Netherlands</td></tr><tr><td>Poland</td></tr><tr><td>Republic of Ireland</td></tr><tr><td>Ukraine</td></tr></table>
 +
<table class=d><tr><td>Poland</td><td>76</td></tr></table>
 +
<table class=d><tr><td>Republic of Ireland</td><td>1</td></tr></table>
 +
 
 +
</div>
  
 
[[Category:Quizzes]]
 
[[Category:Quizzes]]

Latest revision as of 14:44, 30 September 2016

JOIN quiz

game
id mdate stadium team1 team2
1001 8 June 2012 National Stadium, Warsaw POL GRE
1002 8 June 2012 Stadion Miejski (Wroclaw) RUS CZE
1003 12 June 2012 Stadion Miejski (Wroclaw) GRE CZE
1004 12 June 2012 National Stadium, Warsaw POL RUS
...
goal
matchid teamid player gtime
1001 POL Robert Lewandowski 17
1001 GRE Dimitris Salpingidis 51
1002 RUS Alan Dzagoev 15
1001 RUS Roman Pavlyuchenko 82
...
eteam
id teamname coach
POL Poland Franciszek Smuda
RUS Russia Dick Advocaat
CZE Czech Republic Michal Bilek
GRE Greece Fernando Santos
...
You want to find the stadium where player 'Dimitris Salpingidis' scored. Select the JOIN condition to use:
 eteam JOIN game ON (id=team1)
 eteam JOIN game ON (id=team2)
 eteam JOIN goal ON (teamid=id)
 game  JOIN goal ON (id=matchid)
 game  JOIN goal ON (team1=teamid OR team2=teamid)
You JOIN the tables goal and eteam in an SQL statement. Indicate the list of column names that may be used in the SELECT line:
 gtime, mdate, stadium, matchid
 mdate, stadium, id
 matchid, teamid, player, gtime, id, teamname, coach
 matchid, teamid, player, gtime, mdate, stadium, team1
 stadium, team1, team2
Select the code which shows players, their team and the amount of goals they scored against Greece(GRE).
SELECT player, teamid, COUNT(*)
  FROM game JOIN goal ON matchid = id
 WHERE (team1 = "GRE" OR team2 = "GRE")
   AND teamid != 'GRE'
 GROUP BY player, teamid
SELECT player, teamid, COUNT(*)
  FROM game JOIN goal ON matchid = id
 WHERE (team1 = "GRE") AND teamid != 'GRE'
 GROUP BY player, teamid
SELECT player, teamid, COUNT(*)
  FROM game JOIN goal ON matchid = id
 WHERE (team1 = "POL" OR team2 = "POL")
   AND teamid != 'POL'
 GROUP BY player, teamid
SELECT player, teamid, COUNT(*)
  FROM game JOIN goal WITH matchid = id
 WHERE (team1 = "GRE" OR team2 = "GRE")
   AND teamid != 'GRE'
 GROUP BY player, teamid
SELECT player, teamid
  FROM game JOIN goal ON matchid = id
 WHERE (team1 = "GRE" OR team2 = "GRE")
   AND teamid != 'GRE'
 GROUP BY player, teamid
Select the result that would be obtained from this code:
SELECT DISTINCT teamid, mdate
  FROM goal JOIN game on (matchid=id)
 WHERE mdate = '9 June 2012'
DEN9 June 2012
GER9 June 2012
DEN
GER
DEN9 June 2012
DEN9 June 2012
POL9 June 2012
RUS9 June 2012
GRE
CZE
POL
RUS
RUS9 June 2012
GRE9 June 2012
RUS9 June 2012
CZE9 June 2012
Select the code which would show the player and their team for those who have scored against Poland(POL) in National Stadium, Warsaw.
  SELECT DISTINCT player, teamid 
  FROM game JOIN goal ON matchid = id 
  WHERE stadium = 'National Stadium, Warsaw' 
 AND (team1 = 'GER' OR team2 = 'GER')
   AND teamid != 'GER'
  SELECT DISTINCT player, teamid 
   FROM game JOIN goal ON matchid = id 
  WHERE stadium = 'National Stadium, Warsaw' 
 AND (team1 = 'POL' OR team2 = 'POL')
   AND teamid != 'POL'
 
 SELECT DISTINCT player, teamid 
   FROM game JOIN goal ON matchid = id 
  WHERE stadium = 'National Stadium, Warsaw' AND teamid != 'POL'
 
 SELECT DISTINCT player, teamid 
   FROM game JOIN goal ON matchid = id 
  WHERE stadium = 'Stadion Miejski (Wroclaw)' 
 AND (team1 = 'POL' OR team2 = 'POL')
  AND teamid != 'POL'
 
 SELECT DISTINCT stadium, mdate 
   FROM game JOIN goal ON matchid = id 
  WHERE stadium = 'National Stadium, Warsaw' 
 AND (team1 = 'POL' OR team2 = 'POL')
  AND teamid != 'POL'
Select the code which shows the player, their team and the time they scored, for players who have played in Stadion Miejski (Wroclaw) but not against Italy(ITA).
SELECT DISTINCT player, teamid, gtime
  FROM game JOIN goal ON matchid = id
 WHERE stadium = 'National Stadium, Warsaw'
   AND (( teamid = team2 AND team1 != 'ITA') OR ( teamid = team1 AND team2 != 'ITA'))
SELECT DISTINCT player, teamid, gtime
  FROM game JOIN goal ON matchid = id
 WHERE stadium = 'Stadion Miejski (Wroclaw)'
   AND (( teamid = team2 AND team1 != 'ESP') OR ( teamid = team1 AND team2 != 'ESP'))
SELECT DISTINCT player, teamid, gtime
  FROM game JOIN goal ON matchid = id
 WHERE stadium = 'Stadion Miejski (Wroclaw)'
   AND (( teamid = team2 AND team1 != 'ITA') OR ( teamid = team1 AND team2 != 'ITA'))
SELECT DISTINCT teamid, gtime
  FROM game JOIN goal ON matchid = id
 WHERE stadium = 'Stadion Miejski (Wroclaw)'
   AND (( teamid = team2 AND team1 != 'ITA') OR ( teamid = team1 AND team2 != 'ITA'))
SELECT DISTINCT player, teamid, gtime
  FROM game JOIN goal ON matchid = id
 WHERE team1 != 'ITA' AND team2 !='ITA'
Select the result that would be obtained from this code:
SELECT teamname, COUNT(*)
  FROM eteam JOIN goal ON teamid = id
 GROUP BY teamname
HAVING COUNT(*) < 3
2
2
1
2
Netherlands2
Poland2
Republic of Ireland1
Ukraine2
Netherlands
Poland
Republic of Ireland
Ukraine
Poland76
Republic of Ireland1