MySQLi - Drop Database


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Drop Database using mysqladmin

You would need special privileges to create or to delete a MySQLi database. So assuming you have access to root user, you can create any database using mysql mysqladmin binary.

Be careful while deleting any database because you will lose your all the data available in your database.

Here is an example to delete a database created in previous chapter −

[root@host]# mysqladmin -u root -p drop TUTORIALS
Enter password:******

This will give you a warning and it will confirm if you really want to delete this database or not.

Dropping the database is potentially a very bad thing to do.
Any data stored in the database will be destroyed.

Do you really want to drop the 'TUTORIALS' database [y/N] y
Database "TUTORIALS" dropped

Drop Database using PHP Script

PHP uses query function to create or delete a MySQLi database. This function takes two parameters and returns TRUE on success or FALSE on failure.

Example

Try out the following example to delete a database −

<html>
   <head>
      <title>Connecting MySQLi Server>/title>
   </head>
   
   <body>
      <?php
         $dbhost = 'localhost:3306';
         $dbuser = 'root';
         $dbpass = '<Password Here>';
         $conn = mysqli_connect($dbhost, $dbuser, $dbpass);
         
         if(! $conn ){
            echo 'Connected failure<br>';
         }
         echo 'Connected successfully<br>';
         $sql = "DROP DATABASE TUTORIALS";
         
         if (mysqli_query($conn, $sql)) {
         echo "Record deleted successfully";
         } else {
            echo "Error deleting record: " . mysqli_error($conn);
         }
         mysqli_close($conn);
      ?>
   </body>
</html>

WARNING − While deleting a database using PHP script, it does not prompt you for any confirmation. So be careful while deleting a MySQLi database.

If connected and deleted database successfully,then the sample output should be like this −

Connected successfully
Database deleted successfully


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