What is a consistent database state, and how is it achieved?
Answer to relevant QuestionsThe DBMS does not guarantee that the semantic meaning of the transaction truly represents the real-world event. What are the possible consequences of that limitation? Give an example.What are the different levels of lock granuality?What are the four ANSI transaction isolation levels? What type of reads does each level allow?Assuming that pessimistic locking is being used, but the two-phase locking protocol is not, create a chronological list of the locking, unlocking, and data manipulation activities that would occur during the complete ...How are database statistics obtained?
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