Updating Data with PDO and MySQL
When attempting to execute an update query using PDO, users may encounter difficulties with their code execution. The following common error in such scenarios is identified:
Incorrect Syntax:
In an update query, it's important to specify the columns to be updated as well as a WHERE clause to target specific rows. The provided code attempts to update all rows in the table, which is not the intended behavior.
Solution:
Correct Syntax:
Rewrite the update query to properly update specific columns in the targeted table. For example:
UPDATE `access_users` SET `contact_first_name` = :firstname, `contact_surname` = :surname, `contact_email` = :email, `telephone` = :telephone WHERE `user_id` = :user_id;
Here, the user_id replaces the VALUES statement to target specific rows based on their unique identifier.
Bind Parameters:
Execute Query:
Disconnect:
Additional Notes:
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