SQL Exercises

Author: ThiagoMowszet

select_from_nobel.sql

@@ -0,0 +1,143 @@
+-- 1. nobel Nobel Laureates
+-- We continue practicing simple SQL queries on a single table. This tutorial is concerned with a table of Nobel prize winners:
+
+SELECT yr, subject, winner
+FROM nobel
+WHERE yr = 1950
+
+
+
+-- 2. 1962 Literature
+-- Show who won the 1962 prize for literature.
+
+SELECT winner
+FROM nobel
+WHERE yr = 1962
+AND subject = 'literature'
+
+
+
+-- 3. Albert Einstein
+
+select yr, subject 
+from nobel
+where winner = 'Albert Einstein'
+
+
+
+-- 4. Recent Peace Prizes
+-- Give the name of the 'peace' winners since the year 2000, including 2000.
+
+select winner
+from nobel
+where yr >= 2000 and subject = 'peace'
+
+
+
+-- 5. Literature in the 1980's
+-- Show all details (yr, subject, winner) of the literature prize winners for 1980 to 1989 inclusive.
+
+select yr, subject, winner
+from nobel
+where (yr between 1980 and 1989) and (subject = 'literature')
+
+
+
+
+-- 6. Only Presidents
+-- Show all details of the presidential winners:
+    -- Theodore Roosevelt
+    -- Thomas Woodrow Wilson
+    -- Jimmy Carter
+    -- Barack Obama
+
+SELECT *
+FROM nobel
+WHERE winner IN (
+        'Theodore Roosevelt',
+        'Woodrow Wilson',
+        'Jimmy Carter',
+        'Barack Obama'
+    )
+
+
+
+-- 7. John
+-- Show the winners with first name John
+
+select winner
+from nobel
+where winner like 'John%'
+
+
+
+
+-- 8. Chemistry and Physics from different years
+-- Show the year, subject, and name of physics winners for 1980 together with the chemistry winners for 1984.
+
+
+select *
+from nobel
+where (yr = 1980 and subject = 'physics') or (yr = 1984 and subject = 'chemistry')
+
+
+
+-- 9. Exclude Chemists and Medics 
+-- Show the year, subject, and name of winners for 1980 excluding chemistry and medicine
+
+select *
+from nobel
+where yr = 1980 and not subject in ('chemistry', 'medicine')
+
+
+
+-- 10. Early Medicine, Late Literature
+-- 10. Show year, subject, and name of people who won a 'Medicine' prize in an early year (before 1910, not including 1910) together with winners of a 'Literature' prize in a later year (after 2004, including 2004)
+
+
+select yr, subject, winner
+from nobel
+where (yr < 1910 and subject = 'Medicine') or (yr >= 2004 and subject = 'Literature')
+
+
+
+
+-- 11. Umlaut
+-- Find all details of the prize won by PETER GRÜNBERG
+
+SELECT *
+FROM nobel
+WHERE winner LIKE 'peter gr%nberg'
+
+
+
+
+-- 12. Apostrophe
+-- Find all details of the prize won by EUGENE O'NEILL
+
+select * 
+from nobel
+where winner = 'Eugene O''neill'
+
+
+
+-- 13. Knights of the realm
+-- List the winners, year and subject where the winner starts with Sir. Show the the most recent first, then by name order.
+
+
+select winner, yr, subject
+from nobel
+where winner like 'Sir%'
+order by yr DESC, winner
+
+
+
+-- 14. Chemistry and Physics last
+-- The expression subject IN ('chemistry','physics') can be used as a value - it will be 0 or 1. Show the 1984 winners and subject ordered by subject and winner name; but list chemistry and physics last.
+
+SELECT winner, subject
+FROM nobel
+WHERE yr=1984
+order by
+case when subject IN ('physics', 'chemistry') then 1 else 0 END,
+subject, winner

select_from_world.sql

@@ -1,4 +1,4 @@
--- 1. Introduction
+- 1. Introduction
 -- Read the notes about this table. Observe the result of running this SQL command to show the name, continent and population of all countries.
 
 SELECT name, continent, population