SQL Exercise: Find the date when penalty shootout matches played
From the following table, write a SQL query to find out when the penalty shootout matches were played. Return playing date.
Sample table: soccer_venue
venue_id | venue_name | city_id | aud_capacity
----------+-------------------------+---------+--------------
20001 | Stade de Bordeaux | 10003 | 42115
20002 | Stade Bollaert-Delelis | 10004 | 38223
20003 | Stade Pierre Mauroy | 10005 | 49822
20004 | Stade de Lyon | 10006 | 58585
20005 | Stade VElodrome | 10007 | 64354
20006 | Stade de Nice | 10008 | 35624
20007 | Parc des Princes | 10001 | 47294
20008 | Stade de France | 10002 | 80100
20009 | Stade Geoffroy Guichard | 10009 | 42000
20010 | Stadium de Toulouse | 10010 | 33150
Sample table: match_mast
match_no | play_stage | play_date | results | decided_by | goal_score | venue_id | referee_id | audence | plr_of_match | stop1_sec | stop2_sec
----------+------------+------------+---------+------------+------------+----------+------------+---------+--------------+-----------+-----------
1 | G | 2016-06-11 | WIN | N | 2-1 | 20008 | 70007 | 75113 | 160154 | 131 | 242
2 | G | 2016-06-11 | WIN | N | 0-1 | 20002 | 70012 | 33805 | 160476 | 61 | 182
3 | G | 2016-06-11 | WIN | N | 2-1 | 20001 | 70017 | 37831 | 160540 | 64 | 268
4 | G | 2016-06-12 | DRAW | N | 1-1 | 20005 | 70011 | 62343 | 160128 | 0 | 185
5 | G | 2016-06-12 | WIN | N | 0-1 | 20007 | 70006 | 43842 | 160084 | 125 | 325
6 | G | 2016-06-12 | WIN | N | 1-0 | 20006 | 70014 | 33742 | 160291 | 2 | 246
7 | G | 2016-06-13 | WIN | N | 2-0 | 20003 | 70002 | 43035 | 160176 | 89 | 188
8 | G | 2016-06-13 | WIN | N | 1-0 | 20010 | 70009 | 29400 | 160429 | 360 | 182
9 | G | 2016-06-13 | DRAW | N | 1-1 | 20008 | 70010 | 73419 | 160335 | 67 | 194
.........
51 | F | 2016-07-11 | WIN | N | 1-0 | 20008 | 70005 | 75868 | 160307 | 161 | 181
Sample table: penalty_shootout
kick_id | match_no | team_id | player_id | score_goal | kick_no
---------+----------+---------+-----------+------------+---------
1 | 37 | 1221 | 160467 | Y | 1
2 | 37 | 1213 | 160297 | Y | 2
3 | 37 | 1221 | 160477 | N | 3
4 | 37 | 1213 | 160298 | Y | 4
5 | 37 | 1221 | 160476 | Y | 5
6 | 37 | 1213 | 160281 | Y | 6
7 | 37 | 1221 | 160470 | Y | 7
8 | 37 | 1213 | 160287 | Y | 8
9 | 37 | 1221 | 160469 | Y | 9
.........
37 | 47 | 1208 | 160166 | Y | 18
Sample Solution:
SQL Code:
SELECT play_date
FROM match_mast
WHERE match_no IN
(SELECT DISTINCT match_no
FROM penalty_shootout);
Sample Output:
play_date ------------ 2016-07-03 2016-07-01 2016-06-25 (3 rows)
Code Explanation:
The said query in SQL that retrieves the play date for all matches in which penalty shootouts occurred from the match_mast table.
The condition filters the rows in the match_mast table to only include those where the match number matches a value returned by a subquery. The subquery selects distinct match numbers from the penalty_shootout table.
Alternative Solution:
JOIN with Subquery:
SELECT v.venue_name
FROM soccer_venue v
JOIN match_mast m ON v.venue_id = m.venue_id
WHERE m.match_no IN (
SELECT DISTINCT match_no
FROM penalty_shootout
);
Explanation:
This query uses a JOIN operation between soccer_venue and match_mast based on the venue_id. Then, it filters the results based on the condition that match_no should be in the list of distinct match_no values obtained from the subquery.
Using EXISTS:
SELECT play_date
FROM match_mast m
WHERE EXISTS (
SELECT 1
FROM penalty_shootout p
WHERE m.match_no = p.match_no
);
Explanation:
This query uses the EXISTS keyword. It checks if there exists at least one row in the penalty_shootout table (aliased as p) where the match_no matches.
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Practice Online
Sample Database: soccer
Query Visualization:
Duration:
Rows:
Cost:
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