SQL Exercise: Players who entered the field in the most recent play

SQL soccer Database: Joins Exercise-61 with Solution

61. From the following tables, write a SQL query to find those players who came into the field at the end of play. Return match number, country name, player name, jersey number and time in out.

Sample table: player_in_out

Sample table: player_mast

Sample table: soccer_country

Sample Solution:

SQL Code:

SELECT match_no,
       country_name,
       player_name,
       jersey_no,
       time_in_out
FROM player_in_out a
JOIN player_mast b ON a.player_id=b.player_id
JOIN soccer_country c ON a.team_id=c.country_id
WHERE time_in_out=
    (SELECT max(time_in_out)
     FROM player_in_out)
  AND in_out='I';

Sample Output:

 match_no | country_name |   player_name    | jersey_no | time_in_out
----------+--------------+------------------+-----------+-------------
       39 | Croatia      | Andrej Kramaric  |         9 |         120
       47 | Italy        | Simone Zaza      |         7 |         120
(2 rows)

Code Explanation:

The said query in SQL that returns information about the last player substitutions in soccer matches, where a player was substituted into the game. The results include the match number, the name of the country, the name of the player, the player's jersey number, and the time the player was substituted in.
The JOIN clause joins the player_in_out and player_mast tables based on player_id column, and the player_in_out and soccer_country tables based on the team_id and country_id columns.
The WHERE clause filters the results to only include the last player substitutions, where a player was substituted into the game (in_out='I').
The time_in_out column is used to find the latest substitution time which comes from a subquery, and the subquery returns this value.,/

Practice Online

Sample Database: soccer

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