SQL Exercise: The 1970 Nobel prize winners except for given subjects
SQL Basic Select Statement: Exercise-20 with Solution.
From the following table, write a SQL query to find the Nobel Prize winners in 1970 excluding the subjects of Physiology and Economics. Return year, subject, winner, country, and category.
Sample table: nobel_win
YEAR SUBJECT WINNER COUNTRY CATEGORY ---- ------------------------- --------------------------------------------- ------------------------- ------------ 1970 Physics Hannes Alfven Sweden Scientist 1970 Physics Louis Neel France Scientist 1970 Chemistry Luis Federico Leloir France Scientist 1970 Physiology Ulf von Euler Sweden Scientist 1970 Physiology Bernard Katz Germany Scientist 1970 Literature Aleksandr Solzhenitsyn Russia Linguist 1970 Economics Paul Samuelson USA Economist 1970 Physiology Julius Axelrod USA Scientist 1971 Physics Dennis Gabor Hungary Scientist 1971 Chemistry Gerhard Herzberg Germany Scientist 1971 Peace Willy Brandt Germany Chancellor 1971 Literature Pablo Neruda Chile Linguist 1971 Economics Simon Kuznets Russia Economist 1978 Peace Anwar al-Sadat Egypt President 1978 Peace Menachem Begin Israel Prime Minister 1987 Chemistry Donald J. Cram USA Scientist 1987 Chemistry Jean-Marie Lehn France Scientist 1987 Physiology Susumu Tonegawa Japan Scientist 1994 Economics Reinhard Selten Germany Economist 1994 Peace Yitzhak Rabin Israel Prime Minister 1987 Physics Johannes Georg Bednorz Germany Scientist 1987 Literature Joseph Brodsky Russia Linguist 1987 Economics Robert Solow USA Economist 1994 Literature Kenzaburo Oe Japan Linguist
Sample Solution:
-- This query selects all columns from the 'nobel_win' table.
SELECT *
-- Specifies the table from which to retrieve the data (in this case, 'nobel_win').
FROM nobel_win
-- Filters the rows to only include those where the 'year' column has the value 1970
-- and the 'subject' column is not 'Physiology' or 'Economics'.
WHERE year = 1970
AND subject NOT IN ('Physiology', 'Economics');
Output of the Query:
year subject winner country category 1970 Physics Hannes Alfven Sweden Scientist 1970 Physics Louis Neel France Scientist 1970 Chemistry Luis Federico Leloir France Scientist 1970 Literature Aleksandr Solzhenitsyn Russia Linguist
Code Explanation:
The above SQL query retrieves all columns from the 'nobel_win' table where the year is 1970 and subject is not 'Physiology' or 'Economics' . The query will return all rows that match this criteria, resulting in a list of all Nobel Prizes awarded in 1970 which is not in the subjects 'Physiology' or 'Economics'. The NOT IN operator allows to check if a value is not within a set of values, in this case the query will filter for rows where the subject column is not 'Physiology' or 'Economics'.
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Previous Python Exercise: All winners in Physics for 1970 and Economics for 1971.
Next Python Exercise: Physiology prize before 71 with a Peace prize after 74.
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