Difference between revisions of "SELECT from BBC Tutorial"

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==BBC Country Profiles==
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This tutorial introduces SQL as a  query language. We will be using the SELECT command on the table bbc:
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<div class='ref_section'>
<table class='db_ref'><tr>
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<table class='db_ref'>
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<caption>bbc</caption>
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<tr>
 
<th>name</th>
 
<th>name</th>
 
<th>region</th>
 
<th>region</th>
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</tr>
 
</tr>
 
</table>
 
</table>
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</div>
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 +
==BBC Country Profiles==
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In this tutorial you will use the SELECT command on the table bbc:
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 +
<div class='extra_space' style='width:1em; height:2.5em;'></div>
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<div class="progress_panel"><div>
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  <div class="summary">Summary</div>
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  <div class="progressbarbg">
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    <div class="progressbar"></div>
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  </div>
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</div></div>
  
 
==Warming up==
 
==Warming up==
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</source>
 
</source>
 
</div>
 
</div>
 
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<div>
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<div class="lsclear">Clear your results</div>
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<p><div class="quizlink">[[BBC QUIZ]]</div></p>
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</div>
 
<h2>What Next</h2>
 
<h2>What Next</h2>
[[BBC QUIZ]]
 
 
<ul>
 
<ul>
 
   <li>You can play a game:
 
   <li>You can play a game:

Latest revision as of 20:23, 16 August 2012

bbc
name region area population gdp
Afghanistan South Asia 652225 26000000
Albania Europe 28728 3200000 6656000000
Algeria Middle East 2400000 32900000 75012000000
Andorra Europe 468 64000
...

Contents

[edit] BBC Country Profiles

In this tutorial you will use the SELECT command on the table bbc:

Summary

[edit] Warming up

Read the notes about this table. Observe the result of running a simple SQL command.

SELECT name, region, population FROM bbc
SELECT name, region, population FROM bbc

[edit] Large Countries

How to use WHERE to filter records.

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 bbc
WHERE population>250000000
SELECT name FROM bbc
WHERE population>200000000


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

per capita GDP is the GDP divided by the population GDP/population

 
SELECT name, gdp/population FROM bbc
  WHERE population > 200000000

Show the name and population in millions for the countries of 'Middle East' Divide the population by 1000000 to get population in millions.

 
SELECT name, population/1000000 FROM bbc
  WHERE region='Middle East'

Show the name and population for 'France', 'Germany', 'Italy'

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

Identify the countries which have names including the word 'United'

 
SELECT name FROM bbc
  WHERE name LIKE '%United%'
Clear your results

What Next

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