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We have a custom application being written that communicates with Magento, we're looking to update inventory at a certain frequency and are looking to do this through SQL communicating directly with the database... what is the query that would update the inventory given a where clause to a product field?

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The relevant database table is named cataloginventory_stock_item.

This table has product_id which refers to catalog_product_entity.entity_id.

It also has qty.

So, if you want to update product with id 1 to have a quantity of 34, the query that you look for might be as simple as:

UPDATE cataloginventory_stock_item SET qty = 34 WHERE product_id = 1;

If you do not know the product id, but you know the sku, the query might be:

UPDATE cataloginventory_stock_item SET qty = 34 WHERE product_id IN (SELECT entity_id FROM catalog_product_entity WHERE sku = 'mysku');

That would be the basic usage.

I hope this helps.

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  • If I have a custom field that is unique, how would I go about finding it to gather the entity_id?
    – Shay Maor
    Sep 13, 2018 at 22:54
  • Nevermind, I figure it out... grabbing the entity_id requires SELECT entity_id FROM catalog_product_entity_varchar WHERE value = [custom_field_value]
    – Shay Maor
    Sep 13, 2018 at 23:00
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    I'm glad it works for you.
    – Marjan
    Sep 14, 2018 at 6:55

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