Difference between revisions of "SQLZOO:About"

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(Created page with "SQLZoo includes tutorials and reference to support people learning SQL. It features: *Interactive access to several SQL engines *Sample databases *Practical exercise *Instant ...")
 
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Here is an example of a question:
 
Here is an example of a question:
  
 +
==Warming up==
 +
<div class='qu'>
 +
[[Read the notes about this table.]] Observe the result of running a simple SQL command.
 +
<source lang='sql' class='def'>
 +
SELECT name, region, population FROM bbc
 +
</source>
 +
<source lang='sql' class='ans'>
 +
SELECT name, region, population FROM bbc
 +
</source>
 +
</div>
 +
 +
And here is how that looks when rendered...
 
==Warming up==
 
==Warming up==
 
<div class='qu'>
 
<div class='qu'>
Line 14: Line 26:
 
SELECT name, region, population FROM bbc
 
SELECT name, region, population FROM bbc
 
</source>
 
</source>
<source lang='html'>
 
 
<source lang='sql' class='ans'>
 
<source lang='sql' class='ans'>
 
SELECT name, region, population FROM bbc
 
SELECT name, region, population FROM bbc
Line 20: Line 31:
 
</div>
 
</div>
  
==Large Countries==
 
<div class='qu'>
 
Show the name for the countries  that have a population of at least 200 million. (200 million is 200000000, there are eight zeros)
 
<source lang='sql' class='def'>
 
SELECT name FROM bbc
 
WHERE population>250000000
 
</source>
 
  
<source lang='sql' class='ans'>
+
{{Languages}}
SELECT name FROM bbc
+
WHERE population>200000000
+
</source>
+
</div>
+
</source>
+

Revision as of 19:58, 21 August 2012

SQLZoo includes tutorials and reference to support people learning SQL. It features:

  • Interactive access to several SQL engines
  • Sample databases
  • Practical exercise
  • Instant feedback on the success of the student's attempts

Format

Here is an example of a question:

==Warming up==
<div class='qu'>
Read the notes about this table. Observe the result of running a simple SQL command.
<source lang='sql' class='def'>
SELECT name, region, population FROM bbc
</source>
<source lang='sql' class='ans'>
SELECT name, region, population FROM bbc
</source>
</div>

And here is how that looks when rendered...

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


Language: English  • Deutsch
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