Magento - update all products inventory with sql

Question

I want to update the inventory of all My Magento products.

Can I do that with an only sql request?

What\'s the request if that\'s possible ?

Thanks

Answer 1

function updateProductStock($productId, $qty) { 
    $resource = Mage::getSingleton('core/resource');
    $write = $resource->getConnection('core_write');
    $write->update(
      "cataloginventory_stock_item"
    , array("qty" => $qty, 'is_in_stock' => ($qty > 0 ? 1 : 0))
    , "product_id = " . $productId
    );
}