Computers and Technology, 03.02.2022 14:00, shaheedbrown06

Mysql inner join example with where clause on both tables

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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)?

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Computers and Technology, 24.06.2019 17:40, xinkyx616

Pseudocode pld #6, pg. 117 start// declarations// number numbertoguess// number myguess; numbertoguess = 92// while myguess ! = numbertoguess// output " guess an integer number between 1 and 100"// input myguess// if (myguess == numbertoguess)// output "you guessed the correct number"// else// output "the number you guessed was incorrect. try again! "// end if// end while// output " for playing the guessing game. have a great day! "// stop

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Computers and Technology, 25.06.2019 05:00, nathan123498

Arun is 5 years older than anu. five years ago, the ratio of their ages was 3: 2 . find their present age

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Computers and Technology, 25.06.2019 08:10, ilovecatsomuchlolol

Which of the following is a difference between the systems development life cycle (sdlc) and extreme programming (xp)? the sdlc model has a separate planning and analysis phase, whereas xp combines both the phases into one phase. in the sdlc model, changes cannot be made to a system once it is delivered to the user, whereas the xp method delivers the system to the users and then make changes suggested by the user. the sdlc model develops an entire system at once, whereas xp uses incremental steps to improve an information system's qualitydevelopers following the sdlc model cannot go on to the next phase until the current phase is finished, whereas in xp, developers can move to any phase from the current phase.

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