Answers: 2
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
Computers and Technology, 24.06.2019 01:00
What shows the web address of the page that is currently displayed in the workspace? status window toolbar location bar internet box
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Computers and Technology, 24.06.2019 18:00
Why is a multiview sketch drawinf different from other sketches like isometric, two point, and oblique
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Computers and Technology, 24.06.2019 18:30
Dereck works for long hours on his computer. he frequently experiences physical strain by the end of the day because he does not follow an important rule of ergonomics with respect to the use of keyboards. which of the following actions of dereck could lead to physical strain? a. placing the keyboard exactly in front of him while typingb. keeping hands and wrists straight while typingc. using wrist pads throughout the dayd. pounding at the keys on the keyboard while typinge. resting his hands on the keyboard when he is not typing
Answers: 1
Edhesive 6.8 code practice...
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