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SQL exercises on soccer Database: Find the captains for the top four teams which participated in the semifinals

SQL soccer Database: Joins Exercise-31 with Solution

31. From the following tables, write a SQL query to find the captains of the top four teams that participated in the semi-finals (match 48 and 49) in the tournament. Return country name, player name, jersey number and position to play.

Sample table: soccer_country


Sample table: match_captain


Sample table: player_mast


Sample Solution:

SQL Code:

SELECT country_name, player_name, jersey_no, posi_to_play 
FROM match_captain a
JOIN soccer_country b ON a.team_id=b.country_id
JOIN player_mast c ON a.player_captain=c.player_id
WHERE match_no IN(48,49);

Sample Output:

 country_name |    player_name     | jersey_no | posi_to_play
--------------+--------------------+-----------+--------------
 France       | Hugo Lloris        |         1 | GK
 Iceland      | Aron Gunnarsson    |        17 | MF
 Portugal     | Cristiano Ronaldo  |         7 | FD
 Wales        | Ashley Williams    |         6 | DF
(4 rows)

Relational Algebra Expression:

Relational Algebra Expression: Find the captains for the top four teams which participated in the semifinals.

Relational Algebra Tree:

Relational Algebra Tree: Find the captains for the top four teams which participated in the semifinals.

Practice Online


Sample Database: soccer

soccer database relationship structure

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Previous: From the following tables, write a SQL query to find the final four teams in the tournament. Return country name.
Next: From the following tables, write a SQL query to find the captains of all the matches in the tournament. Return match number, country name, player name, jersey number and position to play.

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SQL: Tips of the Day

SQL Server SELECT into existing table. 

INSERT INTO dbo.TABLETWO
SELECT col1, col2
  FROM dbo.TABLEONE
 WHERE col3 LIKE @search_key

This assumes there's only two columns in dbo.TABLETWO - you need to specify the columns otherwise:

INSERT INTO dbo.TABLETWO
  (col1, col2)
SELECT col1, col2
  FROM dbo.TABLEONE
 WHERE col3 LIKE @search_key

Database: SQL Server

Ref: https://bit.ly/3y6tpA3