Wednesday, May 21, 2008

SQL ORDER BY

The ORDER BY keyword is used to sort the result.


Sort the Rows

The ORDER BY clause is used to sort the rows.

Orders:

Company OrderNumber
Sega 3412
ABC Shop 5678
W3Schools 6798
W3Schools 2312

Example

To display the company names in alphabetical order:

SELECT Company, OrderNumber FROM Orders
ORDER BY Company

Result:

Company OrderNumber
ABC Shop 5678
Sega 3412
W3Schools 6798
W3Schools 2312

Example

To display the company names in alphabetical order AND the OrderNumber in numerical order:

SELECT Company, OrderNumber FROM Orders
ORDER BY Company, OrderNumber

Result:

Company OrderNumber
ABC Shop 5678
Sega 3412
W3Schools 2312
W3Schools 6798

Example

To display the company names in reverse alphabetical order:

SELECT Company, OrderNumber FROM Orders
ORDER BY Company DESC

Result:

Company OrderNumber
W3Schools 6798
W3Schools 2312
Sega 3412
ABC Shop 5678

Example

To display the company names in reverse alphabetical order AND the OrderNumber in numerical order:

SELECT Company, OrderNumber FROM Orders
ORDER BY Company DESC, OrderNumber ASC

Result:

Company OrderNumber
W3Schools 2312
W3Schools 6798
Sega 3412
ABC Shop 5678
Notice that there are two equal company names (W3Schools) in the result above. The only time you will see the second column in ASC order would be when there are duplicated values in the first sort column, or a handful of nulls.

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