Modify it to show the matchid and player name for all goals scored by Germany. To identify German players, check for: teamid = 'GER'
SELECT matchid, player FROM goal
WHERE teamid = 'GER'
From the previous query you can see that Lars Bender's scored a goal in game 1012. Now we want to know what teams were playing in that match.
Notice in the that the column matchid in the goal table corresponds to the id column in the game table. We can look up information about game 1012 by finding that row in the game table.
Show id, stadium, team1, team2 for just game 1012
SELECT id,stadium,team1,team2 FROM game
WHERE id = '1012'
SELECT *
FROM game JOIN goal ON (id=matchid)
The FROM clause says to merge data from the goal table with that from the game table. The ON says how to figure out which rows in game go with which rows in goal - the matchid from goal must match id from game. (If we wanted to be more clear/specific we could say
ON (game.id=goal.matchid)
The code below shows the player (from the goal) and stadium name (from the game table) for every goal scored.
Modify it to show the player, teamid, stadium and mdate for every German goal.
SELECT player,teamid, stadium, mdate
FROM game JOIN goal ON (id=matchid)
WHERE teamid = 'GER'
Show the team1, team2 and player for every goal scored by a player called Mario player LIKE 'Mario%'
SELECT team1, team2, player
FROM game JOIN goal ON (id = matchid)
WHERE player LIKE 'Mario%'
eteam
gives details of every national team including the coach. You can JOIN
goal
to eteam
using the phrase goal JOIN eteam on teamid=id
Show player
, teamid
, coach
, gtime
for all goals scored in the first 10 minutes gtime<=10
SELECT player, teamid, coach, gtime
FROM goal JOIN eteam ON (teamid = id)
WHERE gtime<=10
JOIN
game
with eteam
you could use eithergame JOIN eteam ON (team1=eteam.id)
or game JOIN eteam ON (team2=eteam.id)
Notice that because id
is a column name in both game
and eteam
you must specify eteam.id
instead of just id
List the dates of the matches and the name of the team in which 'Fernando Santos' was the team1 coach.
SELECT mdate, teamname
FROM game JOIN eteam ON (team1 = eteam.id)
WHERE coach = 'Fernando Santos'
SELECT player FROM game JOIN goal ON (id = matchid)
WHERE stadium = 'National Stadium, Warsaw'
Instead show the name of all players who scored a goal against Germany.
SELECT DISTINCT(player)
FROM game JOIN goal ON matchid = id
WHERE (team1='GER' OR team2='GER')
AND teamid != 'GER'
SELECT teamname, COUNT(player)
FROM eteam JOIN goal ON id=teamid
GROUP BY teamname
ORDER BY teamname
SELECT stadium, COUNT(player)
FROM goal JOIN game ON (matchid = id)
GROUP BY stadium
SELECT matchid, mdate, COUNT(matchid)
FROM game JOIN goal ON (id = matchid)
WHERE teamid = 'GER'
GROUP BY matchid, mdate
mdate | team1 | score1 | team2 | score2 |
---|---|---|---|---|
1 July 2012 | ESP | 4 | ITA | 0 |
10 June 2012 | ESP | 1 | ITA | 1 |
10 June 2012 | IRL | 1 | CRO | 3 |
... |
Notice in the query given every goal is listed. If it was a team1 goal then a 1 appears in score1, otherwise there is a 0. You could SUM this column to get a count of the goals scored by team1. Sort your result by mdate, matchid, team1 and team2.
SELECT mdate, team1,
SUM(CASE WHEN teamid = team1 THEN 1 ELSE 0 END) score1,
team2,
SUM(CASE WHEN teamid = team2 THEN 1 ELSE 0 END) score2
FROM game JOIN goal ON matchid = id
GROUP BY mdate, team1, team2