connect to mysql code example

Example 1: java connect to mysql

import java.sql.*;  
class MySqlConn{  
    public static void main(String args[]){  
        try{  
            Class.forName("com.mysql.cj.jdbc.Driver");  
            Connection conn = DriverManager.getConnection("jdbc:mysql://
            localhost:3306/databasename","username","password");  
            Statement stmt = conn.createStatement();  
            ResultSet rs = stmt.executeQuery("select * from emp");    
            con.close();  
        }catch(Exception ex){
            System.out.println(ex);
        }  
    }
}

Example 2: mysql cmd command to run

mysql.exe –uroot –p

Example 3: mysql login console

mysql -u USERNAME -p

Example 4: mysql connect command

mysql --host=localhost --user=myname --password mydb
mysql -h localhost -u myname -p mydb

Example 5: mysql cli connect with password

mysql --user=root --password=mypass

Example 6: db connection in php

Just include this Temlate in other file using PHP Include/Require Keywords
 And Make Connection In One Shot :)

<?php
  
    // echo "Welcome to Connecting of DB Tutorial!";
    // echo "<br>";

    // 1. PDO - Php Data Objects
    // 2. MySQLi extension

    // Set Connection Variable
    $server = "localhost";
    $username = "root";
    $password = "";
    $database = "test";

    // Create A Connection
    $con = mysqLi_connect($server, $username, $password, $database);

     // Check For Connection
     if(!$con){
        die ("Connection Terminated! by Die() function". mysqLi_connect_error());
       
    }
    else {
        echo "Connection Succefully Happened! <br>";
    }


    ?>