What are the potential pitfalls of relying solely on auto_increment for database management in PHP?

Relying solely on auto_increment for database management in PHP can lead to potential issues such as gaps in the sequence of IDs, especially if records are deleted or inserted out of order. To avoid this problem, it is recommended to use a combination of auto_increment and a separate column for a unique identifier that can be generated and managed within the application code. 

// Example of creating a unique identifier using PHP code
$unique_id = uniqid();
$sql = "INSERT INTO table_name (unique_id, column_name) VALUES ('$unique_id', 'value')";
$result = mysqli_query($conn, $sql);

Keywords

auto_increment database management PHP primary key data integrity

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