SQL ORDER BY

After being learn through all the displaying data syntax. It’s time to learn how to sort data by using ORDER BY.

Yes it is. ORDER BY clause allows you to sort the records in your result set. This clause can only be used in SELECT statements. The ORDER BY clause sorts the result set based on the columns specified by ASC or DESC value is stated. If not the system assumed the sorting is ascending order.

Let's see on the syntax:

SELECT [COLUMN NAME] FROM [TABLE NAME] ORDER BY [COLUMN 1]

ASC indicates ascending order. (This value is default sorting for SQL syntax)
DESC indicates descending order.


EXAMPLE#1 :

Table GameScores

PlayerName Department Scores
Jason IT 3000
Irene IT 1500
Jane Marketing 1000
David Marketing 2500
Paul HR 2000
James HR 2000

let's see some simple sorting from the SQL statement using ORDER BY SQL statement :

SELECT * FROM GameScores ORDER BY Scores

Result:

PlayerName Department Scores
Jane Marketing 1000
Irene IT 1500
Paul HR 2000
James HR 2000
David Marketing 2500
Jason IT 3000

Result will be the same if the SQL statement write like this :

SELECT * FROM GameScores ORDER BY Scores ASC


EXAMPLE#2 :

let's see the example of sorting by DESC (descending order)
SQL statement :

SELECT * FROM GameScores ORDER BY Scores DESC

Result:

PlayerName Department Scores
Jason IT 3000
David Marketing 2500
Paul HR 2000
James HR 2000
Irene IT 1500
Jane Marketing 1000
posted on 2013-09-18 14:08  莫水千流  阅读(725)  评论(0编辑  收藏  举报