SQL: The winners of a 'Physiology' prize in an early year before 1971 are shown in conjunction with the winners of a 'Peace' prize in a later year following the 1974
SQL Basic Select Statement: Exercise-21 with Solution.
From the following table, write a SQL query to combine the winners in 'Physiology' before 1971 and winners in 'Peace' on or after 1974. Return year, subject, winner, country, and category.
Sample table: nobel_win
Sample Solution:
SELECT * FROM nobel_win WHERE (subject ='Physiology' AND year<1971) UNION (SELECT * FROM nobel_win WHERE (subject ='Peace' AND year>=1974));
Output of the Query:
year subject winner country category 1970 Physiology Bernard Katz Germany Scientist 1970 Physiology Julius Axelrod USA Scientist 1970 Physiology Ulf von Euler Sweden Scientist 1978 Peace Anwar al-Sadat Egypt President 1978 Peace Menachem Begin Israel Prime Minister 1994 Peace Yitzhak Rabin Israel Prime Minister
Relational Algebra Expression:
Relational Algebra Tree:
Practice Online
Query Visualization:
Duration:

Rows:

Cost:

Have another way to solve this solution? Contribute your code (and comments) through Disqus.
Previous: From the following table, write a SQL query to find the Nobel Prize winners in 1970 excluding the subjects Physiology and Economics. Return year, subject, winner, country, and category.
Next: From the following table, write a SQL query to find the details of the Nobel Prize winner 'Johannes Georg Bednorz'. Return year, subject, winner, country, and category.
Test your Programming skills with w3resource's quiz.
What is the difficulty level of this exercise?
SQL: Tips of the Day
Can a foreign key be NULL and/or duplicate?
First remember a Foreign key simply requires that the value in that field must exist first in a different table (the parent table). That is all an Foreign key is by definition. Null by definition is not a value. Null means that we do not yet know what the value is.
Ref: https://bit.ly/3uVu3OS
- Exercises: Weekly Top 12 Most Popular Topics
- Pandas DataFrame: Exercises, Practice, Solution
- Conversion Tools
- JavaScript: HTML Form Validation
- SQL Exercises, Practice, Solution - SUBQUERIES
- C Programming Exercises, Practice, Solution : For Loop
- Python Exercises, Practice, Solution
- Python Data Type: List - Exercises, Practice, Solution
- C++ Basic: Exercises, Practice, Solution
- SQL Exercises, Practice, Solution - exercises on Employee Database
- SQL Exercises, Practice, Solution - exercises on Movie Database
- SQL Exercises, Practice, Solution - exercises on Soccer Database
- C Programming Exercises, Practice, Solution : Recursion