Connect the bot at wp db

Hello, is it possible to interact whith the wp’s DB?

By now i want to return a date when a command it’s executed, the select is the following :

function getLastEventDate() {
$value = $this->wpdb->get_var(
“SELECT date
FROM events
ORDER BY STR_TO_DATE( data, ‘%d/%m/%Y’ ) DESC
LIMIT 1″
);

return $value;
}