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MYSQL Tutorial

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">
<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>

View the example in browser

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>

All String Functions

MySQL String Functions, slide presentation

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