Lock supervisor - This component keeps many users from modifying exactly the same data at the same time. It locks obtain for each user consequently. two《grant A B》⇔《grant B into a》A（人）にB（許可・権利など）を与える，授ける The federal government granted permission for oil exploration. Critical-benefit DBMS - This sort manages crucial-worth databases that retailer knowledge https://jsxdom.com/next-gen-backend-web-development/