src/Model/MySQLModelAbstract.php
public function update($SQL, $parameters = null) {
        $queryResult = $this->executeSQL($SQL, $parameters);
        return $queryResult->rowCount();
    }
public function update($SQL, $parameters = null) {
        $queryResult = $this->executeSQL($SQL, $parameters);
        return $queryResult->rowCount();
    }
Do a update query to Database and return the number of updated rows

@param string $SQL
@return int number of update rows.
@throws ModelException