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PHP MySQL Delete


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Old 05-04-2009, 05:56 PM
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Default PHP MySQL Delete

The DELETE statement is used to delete records in a table.
Delete Data In a Database

The DELETE FROM statement is used to delete records from a database table.


Syntax

DELETE FROM table_name
WHERE some_column = some_value
Note: Notice the WHERE clause in the DELETE syntax. The WHERE clause specifies which record or records that should be deleted. If you omit the WHERE clause, all records will be deleted!



To get PHP to execute the statement above we must use the mysql_query() function. This function is used to send a query or command to a MySQL connection.


Example

Look at the following "Persons" table:


FirstName LastName Age Peter Griffin 35 Glenn Quagmire 33



The following example deletes all the records in the "Persons" table where LastName='Griffin':




$con = mysql_connect("localhost","peter","abc123");
if (!$con)
{
die('Could not connect: ' . mysql_error());
} mysql_select_db("my_db", $con);

mysql_query("DELETE FROM Persons WHERE LastName='Griffin'"); mysql_close($con);
?>



After the deletion, the table will look like this:


FirstName LastName Age Glenn Quagmire 33

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