How do I handle duplicate entries

MySQL, duplicate entries, insert ignore, unique constraint, error handling, database management
Learn how to effectively handle duplicate entries in MySQL databases using techniques such as 'INSERT IGNORE' and unique constraints to maintain data integrity.
<?php // MySQL connection $conn = new mysqli("localhost", "username", "password", "database_name"); // Check connection if ($conn->connect_error) { die("Connection failed: " . $conn->connect_error); } // Example of inserting a record while ignoring duplicates $sql = "INSERT IGNORE INTO users (email, name) VALUES ('duplicate@example.com', 'John Doe')"; if ($conn->query($sql) === TRUE) { echo "New record created successfully"; } else { echo "Error: " . $sql . "<br>" . $conn->error; } $conn->close(); ?>

MySQL duplicate entries insert ignore unique constraint error handling database management

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