SQL exercises on soccer Database: Find the name and country of the referee who managed the opening match

Last update on May 30 2022 07:30:46 (UTC/GMT +8 hours)

SQL soccer Database: Joins Exercise-8 with Solution

8. From the following tables, write a SQL query to find the referee who managed the opening match. Return referee name, country name.

Sample table: soccer_country

Sample table: match_mast

Sample table: referee_mast

Sample Solution:

SQL Code:

SELECT b.referee_name, c.country_name 
FROM match_mast a
NATURAL JOIN referee_mast b 
NATURAL JOIN soccer_country c
WHERE match_no=1;

Sample Output:

 referee_name  | country_name
---------------+--------------
 Viktor Kassai | Hungary
(1 row)

Relational Algebra Expression:

Relational Algebra Tree:

Sample Database: soccer

Duration:

Rows:

Cost:

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Previous: From the following tables, write a SQL query to find the player who scored first goal of EURO cup 2016. Return player_name, jersey_no, country_name, goal_time, play_stage, goal_schedule, goal_half.
Next: From the following tables, write a SQL query to find the referee who managed the final match. Return referee name, country name.

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