SQL: SELECT from WORLD table

Show the countries which have a name that includes the word 'United'

SELECT name FROM world WHERE name like '%United%'

Show the name and population in millions and the GDP in billions for the countries of the continent 'South America'. Use the ROUND function to show the values to two decimal places. For South America show population in millions and GDP in billions both to 2 decimal places.

SELECT name , round(population/1000000,2) , round(GDP/1000000000,2) FROM world WHERE continent = 'South America'

Find the country that has all the vowels and no spaces in its name.

SELECT name FROM world WHERE name LIKE '%a%' AND name LIKE '%e%' AND name LIKE '%i%' AND name LIKE '%o%' AND name LIKE '%u%' AND name NOT LIKE '% %'

Show the name for the countries that have a population of at least 200 million. 200 million is 200000000, there are eight zeros.

SELECT name FROM world WHERE population >= 200000000

Give the name and the per capita GDP for those countries with a population of at least 200 million.

SELECT name, GDP/population FROM world WHERE population >= 200000000

Show the name and per-capita GDP for those countries with a GDP of at least one trillion (1000000000000; that is 12 zeros). Round this value to the nearest 1000. Show per-capita GDP for the trillion dollar countries to the nearest $1000.

SELECT name, ROUND(gdp/population, -3) FROM world WHERE gdp >= 1000000000000

Show the name and the capital where the first letters of each match. Don't include countries where the name and the capital are the same word.

SELECT name, capital FROM world WHERE LEFT(name,1) = LEFT(capital,1) AND name != capital

Observe the result of running this SQL command to show the name, continent and population of all countries.

SELECT name, continent, population FROM world

Show the name and population for France, Germany, Italy

SELECT name, population FROM world WHERE name IN ('France', 'Germany', 'Italy')

Exclusive OR (XOR). Show the countries that are big by area (more than 3 million) or big by population (more than 250 million) but not both. Show name, population and area.

SELECT name, population, area FROM world WHERE (area > 3000000 AND population < 250000000) OR (area < 3000000 AND population > 250000000)

Two ways to be big: A country is big if it has an area of more than 3 million sq km or it has a population of more than 250 million. Show the countries that are big by area or big by population. Show name, population and area.

SELECT name, population, area FROM world WHERE (area > 3000000) OR (population > 250000000)

Show the name and population in millions for the countries of the continent 'South America'. Divide the population by 1000000 to get population in millions.

SELECT name, population/1000000 FROM world WHERE continent = 'South America'