Here is the useful code for a purpose : update stock item quantity for a product in magento:    

SQLSTATE[22003]: Numeric value out of range: 1690 BIGINT UNSIGNED value is out of range in ‘(DB.tag_summary.products – 1)’ Magento Version 1.9.0.1 Project Fix: I recently had to resolve this issue for a customer, and since it was quite easy to fix, I figured I’d share with all you developer and do…