local component = require("component")
local sides = require("sides")

local db = component.database -- primary database component
local invcontrol = component.inventory_controller -- primary inventory controller

-- define slot numbers
dbSlot = 1
invSlot = 1

-- compare item inside remote inventory to item in first slot of database
if db.get(dbSlot).label == invcontrol.getStackInSlot(sides.north, invSlot).label then
	-- items match, do stuff with it. 
else
	-- items don't match, do nothing, or do something else.
end