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Database Systems(BCSE302L)
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35. If T2 starts after T1 commits, schedule is:
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4. Given schedule S: r1(x), r2(x), w1(x), w2(x), r1( y ), w1( y ), r2( y ). Which statement is true?
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29. In immediate update, if commit record is missing after crash:
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33. Two transactions hold shared locks on same item. What can happen?
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42. Recovery using log ensures:
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43. Which recovery technique uses both undo and redo?
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2. For the given schedule S: r1( y ), r2(x), r2 ( y ), r3( y ), w2(x), w1 ( y ), w3(x), r1(x), which statement is true?
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17. In shadow paging, which of the following is true?
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32. Which protocol guarantees serializability?
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Find the maximum and minimum number of keys in the internal nodes of B – Tree if the order of the node is four,
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