$product = $productRepo->get($_sku);
$product->setStockData(['qty'=>$new_qty,'is_in_stock'=>($new_qty > 0 ? true : false)]);
$product->save();

CONCAT(LOWER(REPLACE(remove_non_alphanum_char_f(TRIM(`Description`)), ' ', '-')), '-', `Internal ID`,FLOOR(10000 + RAND() * 89999)) AS url_key