Computers and Technology, 14.01.2020 05:31, corrineikerd
Clarify and emphasize details, so they appeal to audience members with differing backgrounds, reading levels, attention spans, and motivations.
Answers: 1
Computers and Technology, 21.06.2019 16:50, jaueuxsn
3(c). is the following command correct? if not, correct the syntax and explain your answers. you can just rewrite/correct only the wrong parts. (4) select p#, city, zipcode, count(*) from client c, property p, viewing v where c. c# = v. c# and v. p# = p. p# group by p#, city having count(*) > 3;
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
Clarify and emphasize details, so they appeal to audience members with differing backgrounds, readin...
Chemistry, 07.11.2020 01:40
Chemistry, 07.11.2020 01:40
Mathematics, 07.11.2020 01:40
Mathematics, 07.11.2020 01:40
Mathematics, 07.11.2020 01:40
Business, 07.11.2020 01:40