Suppose that the system crashes before the [write_item,T2,D,25,26] entry is written to the log in Figure 23.1 (b); will that make any difference in the recovery process?
What will be an ideal response?
Since both transactions T2 and T3 are not yet committed, they have to be rolled back
during the recovery process.
Computer Science & Information Technology
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Which of the following would be considered a mechanical calculator?
A. Schickard's Calculator B. Pascaline C. Thomas de Colmar's Arithmometer D. All of the above
Computer Science & Information Technology
In Python, two ____ symbols carry out a comparison between two values.
A. bracket B. pound C. equals D. colon
Computer Science & Information Technology