How to print Product collection mysql query in magento2

Question

In my product page Price sorting not works properly. So i need to know which field value consider for sorting ? the issue occurs in configurable products.How do I print the actual MySQL code that gets executed?

Answer 1

Let's say you have a product collection like this:

//$collection is instance of Magento\Catalog\Model\ResourceModel\Product\Collection
$collection->addAttributeToSelect('*');
$collection->addAttributeToFilter(
                'status', array('eq' => \Magento\Catalog\Model\Product\Attribute\Source\Status::STATUS_ENABLED)
            );

Then you can simple get sql query by this:

echo $collection->getSelect();

or

you can add this to the app/code/Magento/Catalog/view/frontend/templates/product/list.phtml file: (File location would depend on your theme)

echo $_productCollection->getSelect();

Answer 2

Try this type code that is example of how to print mysql query.

    <?php 
    $objectManager = \Magento\Framework\App\ObjectManager::getInstance();
    $productCollections = $objectManager->get('\Magento\Catalog\Model\ResourceModel\Product\CollectionFactory');
    $collections = $productCollections->create();
    $collections->addAttributeToSelect('*');
    echo $collections->getSelect()->__toString();

    ?>

Answer 3

In a simple way, echo your collection with getSelect function.

Here it is

echo $collection->getSelect();