When you see this traffic signal is turned on, you may
a. go straight regardless of oth...
Computers and Technology, 05.11.2019 21:31 tdahna0403
When you see this traffic signal is turned on, you may
a. go straight regardless of other signals
b. turn right without any restrictions
c. turn left if the intersection is clear in your direction
d. yield to traffic
Answers: 3
Computers and Technology, 23.06.2019 10:20
Suppose there is a relation r(a, b, c) with a b+-tree index with search keys (a, b).1. what is the worst-case cost of finding records satisfying 10 < a < 50 using this index, in terms of the number of records n1, retrieved and the height h of the tree? 2. what is the worst-case cost of finding records satisfying 10 < a < 50 and 5 < b < 10 using this index, in terms of the number of records n2 that satisfy this selection, as well as n1 and h defined above? 3. under what conditions on n1 and n2, would the index be an efficient way of finding records satisfying the condition from part (2)?
Answers: 1
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Companies that implement and apply an information system effectively can create
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Computers and Technology, 24.06.2019 17:00
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