Difference between revisions of "SELECT"
From SQLZOO
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==Large Countries== | ==Large Countries== | ||
<div class='qu'> | <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) | + | 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'> | <source lang='sql' class='def'> | ||
SELECT name FROM bbc | SELECT name FROM bbc | ||
Revision as of 08:46, 17 May 2012
Contents |
BBC Country Profiles
This tutorial introduces SQL as a query language. We will be using the SELECT command on the table 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 | |
| ... | ||||
Exercises
Using the SELECT statement.
Warming up
Read the notes about this table. Issue the command:
SELECT name, region, population FROM bbc
Look at the output.
SELECT name, region, population FROM bbc
SELECT name, region, population FROM bbc
Large Countries
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
