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nikitadnepr [17]
3 years ago
15

An index purports to speed data retrieval. you, therefore, index every attribute in each table. select the likely consequence.

Computers and Technology
1 answer:
stira [4]3 years ago
4 0

Answer:

b. data entry slows as every INSERT , UPDATE, or DELETE statement must also update every index.

Explanation:

This process help to improve the speed of get data , it takes each element in the indexed column and save the location to get faster the data. But if you index every attribute in a table it going to take a lot of time locating each column in the respective index in each query(update, delete and insert). For that reason is necesary be carefull with this process and only put index in the relevant columns

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Data with values that change continuously or smoothly over time is known as:
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When creating a user generated function, what procedure is followed?
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When creating a user-generated function, what procedure is followed d) all of the above.

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2 years ago
Write a program that reads a string consisting of a positive integer or a positive decimal number and converts the number to the
jeka94

Answer:

#include <iostream>

#include <string>

#include <stack>

#include <math.h>

using namespace std;

int main() {

  string s;

  double n=0;

  int position=0;  

  stack<int> wholeNumbers;

  cout<<"Enter a decimal number:";

  cin>>s;

  string::iterator counter = s.begin();

  while(*counter!='.' && counter!=s.end()){

      wholeNumbers.push(*counter-48);

      counter++;

      position=position+1;

     

  }

  for(int i=0;i<position;i++){

      n=n+(wholeNumbers.top()*pow(10,i));

      wholeNumbers.pop();

  }

  position=-1;

  if(counter!=s.end()){

      counter++;

  }

  while(counter!=s.end()){

      n=n+((*counter-48)*pow(10,position));

      position=position-1;

      counter++;      

  }

  cout<<n;

}

Explanation:

  • Inside the while loop, push the push a number to the wholeNumbers stack by subtracting it with 48.
  • Increment the counter and position variable by 1 inside the while loop.
  • Count the number of digit, push each digit to top of stack and find the end of the number,
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What is one way polymorphism is implemented?
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Answer:

repurposing an operation

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