Difference between revisions of "SELECT"
From SQLZOO
(→Warming up) |
|||
| Line 48: | Line 48: | ||
Issue the command: | Issue the command: | ||
SELECT name, region, population FROM bbc | SELECT name, region, population FROM bbc | ||
| − | Look at the output. | + | Look at the output... |
<source lang='sql' class='def'> | <source lang='sql' class='def'> | ||
SELECT name, region, population FROM bbc | SELECT name, region, population FROM bbc | ||
Revision as of 07:47, 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
