MySQL RLIKE operator
RLIKE operator
MySQL RLIKE operator performs a pattern match of a string expression against a pattern. The pattern is supplied as an argument.
Syntax:
RLIKE pat
Argument
Name | Description |
---|---|
pat | A pattern which is to be matched against an expression. |
The operator is the synonym for REGEXP.
Video Presentation
Example: MySQL RLIKE operator
The following MySQL statement will find the author’s name beginning with ‘w’. The ‘^’ have been used to match the beginning of the name.
Code:
SELECT *
FROM author
WHERE aut_name RLIKE '^w';
Sample table: author
Sample Output:
mysql> SELECT * FROM author -> WHERE aut_name RLIKE '^w'; +--------+-----------------+---------+-----------+ | aut_id | aut_name | country | home_city | +--------+-----------------+---------+-----------+ | AUT001 | William Norton | UK | Cambridge | | AUT002 | William Maugham | Canada | Toronto | | AUT003 | William Anthony | UK | Leeds | +--------+-----------------+---------+-----------+ 3 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=1.0">
<title>example-rlike-function - php mysql examples | w3resource</title>
<meta name="description" content="example-rlike-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 with their id, name country and home city. The list set against a condition, and that is, Author's name should not begin with 'w':</h2>
<table class='table table-bordered'>
<tr>
<th>Author's id</th><th>Author's name</th><th>Country</th><th>Home city</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 *
FROM author
WHERE aut_name RLIKE "^w"') as $row) {
echo "<tr>";
echo "<td>" . $row['aut_id'] . "</td>";
echo "<td>" . $row['aut_name'] . "</td>";
echo "<td>" . $row['country'] . "</td>";
echo "<td>" . $row['home_city'] . "</td>";
echo "</tr>";
}
?>
</tbody></table>
</div>
</div>
</div>
</body>
</html>
JSP script
<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@ page import="java.sql.*" %>
<%@ page import="java.io.*" %>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>example-rlike-function</title>
</head>
<body>
<%
try {
Class.forName("com.mysql.jdbc.Driver").newInstance();
String Host = "jdbc:mysql://localhost:3306/w3resour_bookinfo";
Connection connection = null;
Statement statement = null;
ResultSet rs = null;
connection = DriverManager.getConnection(Host, "root", "datasoft123");
statement = connection.createStatement();
String Data ="SELECT * FROM author WHERE aut_name RLIKE '^w'";
rs = statement.executeQuery(Data);
%>
<TABLE border="1">
<tr width="10" bgcolor="#9979">
<td>Author's id</td>
<td>Author's name</td>
<td>Country</td>
<td>Home city</td>
</tr>
<%
while (rs.next()) {
%>
<TR>
<TD><%=rs.getString("aut_id")%></TD>
<TD><%=rs.getString("aut_name")%></TD>
<TD><%=rs.getString("country")%></TD>
<TD><%=rs.getString("home_city")%></TD>
</TR>
<% } %>
</table>
<%
rs.close();
statement.close();
connection.close();
} catch (Exception ex) {
out.println("Cant connect to database.");
}
%>
</body>
</html>
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