Question: If the entire database fits in main memory do we
If the entire database fits in main memory, do we still need a database system to manage the data? Explain your answer.
Answer to relevant QuestionsConsider a main-memory database system recovering from a system crash. Explain the relative merits of• Loading the entire database back into main memory before resuming transaction processing• Loading data as it is ...Consider amultithreaded process that deliversmessages froma durable queue of persistent messages. Different threads may run concurrently, attempting to deliver different messages. In case of a delivery failure, the message ...The impurity level (in ppm) is routinely measured in an intermediate chemical product. The following data were observed in a recent test: 2.4, 2.5, 1.7, 1.6, 1.9, 2.6, 1.3, 1.9, 2.0, 2.5, 2.6, 2.3, 2.0, 1.8, 1.3, 1.7, 2.0, ...Use the normal approximation to the sign test for the data in Exercise 15-10. What conclusions can you draw?Consider the data in Exercise 15-1 and assume that the distribution of pH is symmetric and continuous. Use the Wilcox on signed-rank test with a = 0.05 to test the hypothesis H0 = μ = 7 against H1 = μ 7.
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