Computers and Technology, 26.07.2019 13:40 saucyboyFredo
In a file-oriented information system, a master file
Answers: 1
Computers and Technology, 22.06.2019 00:00, azainababbas
Sam is a data analyst at an advertising firm. he often uses a spreadsheet that contains media ratings details. he would like to filter the spreadsheet data based on different filter criteria. which operators can he use to specify the combination of filter criteria? sam can use the ( blank ) operators to specify a combination of filter criteria.
Answers: 3
Computers and Technology, 23.06.2019 07:30, Braxtonw875
What part of the interface displays the external references contained in a selected cell? the status bar the review tab the scroll bar the formula bar
Answers: 1
Computers and Technology, 23.06.2019 10:20, chonawilson4
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
In a file-oriented information system, a master file...
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