What are the advantages and disadvantages of using int(12) as the data type for storing dates in a MySQL database, compared to using date or datetime data types?

Using int(12) as the data type for storing dates in a MySQL database can offer advantages such as improved performance and storage efficiency compared to date or datetime data types. However, it also has disadvantages such as increased complexity in handling date-related operations and potential limitations in date range and functionality. 

// To store dates as int(12) in a MySQL database
$date = strtotime('2022-12-31');
$date_int = date('Ymd', $date);

// To retrieve the date from int(12) format
$date_str = substr($date_int, 0, 4) . '-' . substr($date_int, 4, 2) . '-' . substr($date_int, 6, 2);
echo $date_str;

Keywords

int(12) date datetime MySQL database advantages

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