MySQL Update
Update Data In a Database
The UPDATE statement is used to modify data in a database table.
Syntax
UPDATE table_name
SET column_name = new_value
WHERE column_name = some_value
Note: SQL statements are not case sensitive. UPDATE is the same as update.
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
Earlier in the tutorial we created a table named "Person". Here is how it looks:
| First Name |
Last Name |
Age |
| Nancy |
Varghese |
33 |
| Bill |
Gates |
35 |
The following example updates some data in the "Person" table:
<?php
$con = mysql_connect("localhost","peter","abc123");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("my_db", $con);
mysql_query("UPDATE Person SET Age = '36'
WHERE FirstName = 'Bill' AND LastName = 'Gates'");
mysql_close($con);
?>
After the update, the "Person" table will look like this:
| First Name |
Last Name |
Age |
| Bill |
Gates |
36 |
| Nancy |
Varghese |
33 |
Back to Home
|
