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MySQL less than or equal operator

MySQL less than or equal operator

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Description

MySQL less than or equal operator checks whether an expression is either less than or equal to another expression.

Syntax

<=

MySQL Version : 5.6


Example :

Sample table : publisher

The following MySQL statement will fetch those publishers form the publisher table who have less than or equal to 6 branch offices.

SELECT pub_name,country,pub_city,no_of_branch
FROM publisher       
WHERE no_of_branch<=6;

Output

mysql> SELECT pub_name,country,pub_city,no_of_branch
    -> FROM publisher       
    -> WHERE no_of_branch<=6;
+------------------------------+-----------+-----------+--------------+
| pub_name                     | country   | pub_city  | no_of_branch |
+------------------------------+-----------+-----------+--------------+
| New Harrold Publication      | Australia | Adelaide  |            6 | 
| Pieterson Grp. of Publishers | UK        | Cambridge |            6 | 
+------------------------------+-----------+-----------+--------------+
2 rows in set (0.02 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-less-than-or-equal-operator- php mysql examples | w3resource</title>
<meta name="description" content="example-less-than-or-equal-operator- 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>List of publishers whose number of branches are six or less, along with their country, city and number of branches:</h2>
<table class='table table-bordered'>
<tr>
<th>Publisher</th><th>Country</th><th>City</th><th>Number of branches</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 pub_name,country,pub_city,no_of_branch
FROM publisher
WHERE no_of_branch<=6') as $row) {
echo "<tr>";
echo "<td>" . $row['pub_name'] . "</td>";
echo "<td>" . $row['country'] . "</td>";
echo "<td>" . $row['pub_city'] . "</td>";
echo "<td>" . $row['no_of_branch'] . "</td>";
echo "</tr>"; 
}
?>
</tbody></table>
</div>
</div>
</div>
</body>
</html>

View the example in browser

Slideshow of MySQL Comparison Function and Operators

MySQL Comparison Function and Operators, slide presentation



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