Difference between revisions of "SELECT Quiz"

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|type="()"}
 
|type="()"}
 
- SELECT name, population FROM bbc WHERE population BETWEEN (100000000, 200000000)
 
- SELECT name, population FROM bbc WHERE population BETWEEN (100000000, 200000000)
|| The correct syntax does not include brackets.
 
 
- SELECT name, population FROM bbc WHERE population BETWEEN 100000000, 200000000
 
- SELECT name, population FROM bbc WHERE population BETWEEN 100000000, 200000000
 
+ SELECT name, population FROM bbc WHERE population BETWEEN 100000000 AND 200000000
 
+ SELECT name, population FROM bbc WHERE population BETWEEN 100000000 AND 200000000

Revision as of 15:14, 23 July 2012

SELECT quiz

1. Select the code which shows the countries with a population between 100000000 and 200000000

SELECT name, population FROM bbc WHERE population BETWEEN (100000000, 200000000)
SELECT name, population FROM bbc WHERE population BETWEEN 100000000, 200000000
SELECT name, population FROM bbc WHERE population BETWEEN 100000000 AND 200000000
SELECT name, population FROM bbc WHERE area BETWEEN 100000000 AND 200000000
SELECT population FROM bbc WHERE population BETWEEN 100000000 AND 200000000

2. Select the code which shows the countries that end in A or L

SELECT name FROM bbc WHERE name LIKE '%a' AND name LIKE '%l'
SELECT name FROM bbc WHERE name LIKE 'a%' AND name LIKE 'l%'
SELECT name FROM bbc WHERE name LIKE '%a' OR 'l%'
SELECT name FROM bbc WHERE name LIKE '%a' OR name LIKE '%l'
SELECT name FROM bbc WHERE name LIKE 'a%' OR name LIKE 'l%'

3. Pick the code which shows the total population of Scandinavia (Denmark, Finland, Sweden and Norway)

SELECT SUM(population) FROM bbc WHERE name IN ('Denmark', 'Norway', 'Finland','Sweden')
SELECT population FROM bbc WHERE name IN ('Denmark', 'Norway', 'Finland','Sweden')
SELECT SUM(population) FROM bbc WHERE name IN 'Scandinavia'
SELECT SUM(population) FROM bbc WHERE name LIKE ('Denmark', 'Norway', 'Finland','Sweden')
SELECT TOTAL(population) FROM bbc WHERE name IN ('Denmark', 'Norway', 'Finland','Sweden')

4. Select the code that would show the countries with an area larger than 50000 and a population smaller than 10000000

SELECT name, area, population FROM bbc WHERE area > 50000 AND population < 10000000
SELECT name, area, population FROM bbc WHERE area < 50000 AND population < 10000000
SELECT name, area, population FROM bbc WHERE area = 50000 AND population = 10000000
SELECT name, area, population FROM bbc WHERE area > 50000 AND population > 10000000
SELECT name, area, population FROM bbc WHERE area < 50000 AND population > 10000000

5. Select the code that shows the population density of China, Australia, Nigeria and France

SELECT name, area/population FROM bbc WHERE name IN ('China', 'Nigeria', 'France', 'Australia')
SELECT name, area/population FROM bbc WHERE name LIKE ('China', 'Nigeria', 'France', 'Australia')
SELECT name, population/area FROM bbc WHERE name IN ('China', 'Nigeria', 'France', 'Australia')
SELECT name, population/area FROM bbc WHERE name LIKE ('China', 'Nigeria', 'France', 'Australia')
SELECT name, population FROM bbc WHERE name IN ('China', 'Nigeria', 'France', 'Australia')

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