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It is very easy to drop an existing MySQL table, but you need to be very careful while deleting any existing table because the data lost will not be recovered after deleting a table.
Syntax
Here is a generic SQL syntax to drop a MySQL table −
DROP TABLE table_name ;
Dropping Tables from the Command Prompt
To drop tables from the command prompt, we need to execute the DROP TABLE SQL command at the mysql> prompt.
Example
The following program is an example which deletes the tutorials_tbl −
root@host# mysql -u root -p Enter password:******* mysql> use TUTORIALS; Database changed mysql> DROP TABLE tutorials_tbl Query OK, 0 rows affected (0.8 sec) mysql>
Dropping Tables Using PHP Script
PHP uses mysqli query() or mysql_query() function to drop a MySQL table. This function takes two parameters and returns TRUE on success or FALSE on failure.
Syntax
$mysqli→query($sql,$resultmode)
| Sr.No. | Parameter & Description |
|---|---|
| 1 |
$sql
Required – SQL query to drop a table.
|
| 2 |
$resultmode
Optional – Either the constant MYSQLI_USE_RESULT or MYSQLI_STORE_RESULT depending on the desired behavior. By default, MYSQLI_STORE_RESULT is used. |
Example
Try the following example to drop a table −
Copy and paste the following example as mysql_example.php −
<html>
<head>
<title>Dropping MySQL Table</title>
</head>
<body>
<?php
$dbhost = ''localhost'';
$dbuser = ''root'';
$dbpass = ''root@123'';
$dbname = ''TUTORIALS'';
$mysqli = new mysqli($dbhost, $dbuser, $dbpass, $dbname);
if($mysqli→connect_errno ) {
printf("Connect failed: %s<br />", $mysqli→connect_error);
exit();
}
printf(''Connected successfully.<br />'');
if ($mysqli→query("Drop Table tutorials_tbl")) {
printf("Table tutorials_tbl dropped successfully.<br />");
}
if ($mysqli→errno) {
printf("Could not drop table: %s<br />", $mysqli→error);
}
$mysqli→close();
?>
</body>
</html>
Output
Access the mysql_example.php deployed on apache web server and verify the output.
Connected successfully. Table tutorials_tbl dropped successfully.
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