|
PHP MySQL Order By Keyword
The ORDER BY keyword is used to sort the data in a recordset.
The ORDER BY Keyword
The ORDER BY keyword is used to sort the data in a recordset.
The ORDER BY keyword sort the records in ascending order by default.
If you want to sort the records in a descending order, you can use the DESC
keyword.
Syntax
SELECT column_name(s)
FROM table_name
ORDER BY column_name(s) ASC|DESC
|
To learn more about SQL, please visit our SQL
tutorial.
Example
The following example selects all the data stored in the "Persons" table,
and sorts the result by the "Age" column:
<?php
$con = mysql_connect("localhost","peter","abc123");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("my_db", $con);
$result = mysql_query("SELECT * FROM Persons ORDER BY age");
while($row = mysql_fetch_array($result))
{
echo $row['FirstName'];
echo " " . $row['LastName'];
echo " " . $row['Age'];
echo "<br />";
}
mysql_close($con);
?>
|
The output of the code above will be:
Glenn Quagmire 33
Peter Griffin 35
|
Order by Two Columns
It is also possible to order by more than one column. When ordering by more than one column, the second column is only used if
the values in the first column are equal:
SELECT column_name(s)
FROM table_name
ORDER BY column1, column2
|
Need an easy way to get data into XML, or transform XML to another format?
MapForce lets you map XML data to/from any combination of XML, database, flat file, Excel 2007, XBRL, or Web services data.
Then it transforms data instantly or auto-generates royalty-free data integration code for recurrent conversions.
Download a free, fully functional 30-day trial to experience the following features:
- Easy-to-use, graphical data mapping interface
- Instant data transformation
- XSLT 1.0/2.0 and XQuery code generation
- Java, C#, and C++ code generation
- Advanced data processing functions
- Support for all major relational databases including SQL Server, IBM DB2, Oracle, and more
- Visual Studio & Eclipse integration
Download a fully-functional trial today!
|
|
|
|
