Isolation: Every single transaction is impartial of other transactions. Information from one record would not spill onto A different, so it is safe. A Principal Important uniquely identifies Just about every tuple inside a relation. It must incorporate one of a kind values and can't have NULL values. Example: ROLL_NO https://archernsrpm.imblogs.net/85094874/the-5-second-trick-for-database-performance-optimization