Mysql RIGHT() function ~ Tech Blog

Mysql RIGHT() function

MySQL RIGHT() extracts a specified number of characters from the right side of a string.

Syntax:

RIGHT(str, len)

Arguments

Name	Description
str	A string from whose right side a number of characters are to be extracted.
len	An integer indicating the number of characters to be extracted from str.

Note: This function is multi-byte safe.

Pictorial Presentation

Example of MySQL RIGHT() function

The following MySQL statement returns the rightmost 8 characters for the given string ‘w3resource’.

Code:

SELECT RIGHT('w3resource',8);



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Sample Output:

mysql> SELECT RIGHT('w3resource',8);
+-----------------------+
| RIGHT('w3resource',8) |
+-----------------------+
| resource              | 
+-----------------------+
1 row in set (0.00 sec)

Example of MySQL RIGHT() function using table

The following MySQL statement returns the rightmost 7 characters from the column ‘aut_name’ in the table author for those rows, which have the column value of ‘country’ is ‘UK’.

Code:

SELECT aut_name,
RIGHT(aut_name,7) 
FROM author 
WHERE country='UK'; 



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Sample table: author

Sample Output:

mysql> SELECT aut_name,
    -> RIGHT(aut_name,7) 
    -> FROM author 
    -> WHERE country='UK';
+-----------------+-------------------+
| aut_name        | RIGHT(aut_name,7) |
+-----------------+-------------------+
| William Norton  |  Norton           | 
| William Anthony | Anthony           | 
| Piers Gibson    |  Gibson           | 
| C. J. Wilde     | . Wilde           | 
+-----------------+-------------------+
4 rows in set (0.00 sec)

PHP script

<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>example-right-function - php mysql examples | w3resource</title>
<meta name="description" content="example-right-function - php mysql examples | w3resource">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
</head>
<body>
<div class="container">
<div class="row">
<div class="col-md-12">
<h2>A list of Authors those who belong to UK. Second column shows a string containg last seven characters of the Author's name:</h2>
<table class='table table-bordered'>
<tr>
<th>Author's name</th><th>Last seven characters of the Author's name</th>
</tr>
<?php
$hostname="your_hostname";
$username="your_username";
$password="your_password";
$db = "your_dbname";
$dbh = new PDO("mysql:host=$hostname;dbname=$db", $username, $password);
foreach($dbh->query('SELECT aut_name,RIGHT(aut_name,7)
FROM author
WHERE country="UK"') as $row) {
echo "<tr>"; 
echo "<td>" . $row['aut_name'] . "</td>";
echo "<td>" . $row['RIGHT(aut_name,7)'] . "</td>";
echo "</tr>";  
}
?>
</tbody></table>
</div>
</div>
</div>
</body>
</html>



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Tech Blog

Tuesday 10 July 2018