Preventing Overselling: Inventory Locks Under Concurrent Checkouts

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Preventing Overselling: Inventory Locks Under Concurrent Checkouts

Prevent overselling under concurrent checkouts: reservations vs hard decrements, SELECT FOR UPDATE, deadlock-safe multi-line carts, and the payment window.

Prevent overselling under concurrent checkouts: reservations vs hard decrements, SELECT FOR UPDATE, deadlock-safe multi-line carts, and the payment window.