What potential pitfalls should be considered when using auto increment in MySQL?

One potential pitfall when using auto increment in MySQL is that if a row is deleted from the table, the auto increment value will not be reused, potentially leading to gaps in the sequence of IDs. To address this issue, you can reset the auto increment value using the ALTER TABLE command in MySQL. 

// Reset auto increment value in MySQL table
$query = "ALTER TABLE table_name AUTO_INCREMENT = 1";
$result = mysqli_query($connection, $query);

if($result){
    echo "Auto increment value reset successfully";
} else {
    echo "Error resetting auto increment value";
}

Keywords

auto increment MySQL primary key data integrity duplicate entries

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