In terms of database performance, what considerations should be made when choosing between UPDATE and INSERT queries for array data in mysqli?

When dealing with array data in a MySQL database using mysqli, it is important to consider the performance implications of using UPDATE versus INSERT queries. If you are frequently updating individual elements within the array, using UPDATE queries may be more efficient as it allows for targeted updates without needing to rewrite the entire array. However, if you are frequently adding new elements to the array, using INSERT queries may be more efficient as it avoids the need to read and rewrite the entire array each time.

// Example of updating array data using UPDATE query in mysqli
$connection = new mysqli("localhost", "username", "password", "database");

// Update specific element in array column
$newValue = "new value";
$index = 2;
$sql = "UPDATE table_name SET array_column[$index] = '$newValue' WHERE id = 1";
$connection->query($sql);

$connection->close();