In modern history, the end of the early period falls in the late eighteenth century, as an Age of Revolutions dawns, beginning with those in North America and France.n the early modern period, the Holy Roman Empire was a union of territories in Central Europe under a Holy Roman Emperor. The first emperor of the Holy Roman Empire was Otto I. The last was Francis II, who abdicated and dissolved the Empire in 1806 during the Napoleonic Wars.
Latches are internal to the SQL engine and are used to provide memory consistency, whereas locks are used by SQL Server to provide logical transactional consistency. Above answer is taken from the old, but extremely relevant white paper written in the year 2011.
Latch (hardware) A latch (called sneck in Northern England and Scotland) is a type of mechanical fastener that is used to join two (or more) objects or surfaces together while allowing for the regular or eventual separation of the objects or surfaces. A latch typically engages another piece of hardware on the other mounting surface.