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Update select-in-select.sql #18

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Update select-in-select.sql #18

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5 changes: 5 additions & 0 deletions select-in-select.sql
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Original file line number Diff line number Diff line change
Expand Up @@ -52,6 +52,11 @@ SELECT name, CONCAT(ROUND(population/(SELECT population FROM world WHERE name =
FROM world
WHERE continent = 'Europe'

/* above solution is incorrect i believe. The correct answer is */
SELECT name, CONCAT(ROUND((population/(SELECT population FROM world WHERE name = 'Germany')) * 100,0), '%')
AS 'percent of germany' FROM world
WHERE continent = 'Europe'

--#6
/*
Which countries have a GDP greater than every country in Europe? [Give the name only.] (Some countries may have NULL gdp values)
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