Show that there are schedules that are possible under the two-phase locking protocol, but are not possible under the timestamp protocol, and vice versa.
Answer to relevant QuestionsFor each of the following protocols, describe aspects of practical applications that would lead you to suggest using the protocol, and aspects that would suggest not using the protocol:• Two-phase locking• Two-phase ...Devise a timestamp-based protocol that avoids the phantom phenomenon.When the system recovers from a crash, it constructs an undo-list and a redo-list. Explainwhy log records for transactions on the undolist must be processed in reverse order, while those log records for transactions on the ...Explain the difference between a system crash and a “disaster.” Suppose a transaction is written in C with embedded SQL, and about 80 percent of the time is spent in the SQL code, with the remaining 20 percent spent in C code. How much speedup can one hope to attain if parallelism is ...
Post your question