How To SORT DATA In Database With C/C++?
There are many books on database programming available for VB 6 & Java in the market but I could not find any for C or C++.
I would like to know how to sort data from database created with Microsoft Access and display it to the screen.
I have the source code for sorting from Deitel & Deitel's book. I hope any C++ expert out there could tell me how to sort the 99 numbers if the data is in Microsoft Access database instead of the source code.
If you have any source code on searching and sorting the database with C or C++, or if you know any online resources or tutorial, I would appreciate it very much if you could post it here.
Thanks.
Code:
#include<iostream>
using std::cout;
using std::endl;
using std::ios;
#include<iomanip>
using std::setw;
using std::setiosflags;
using std::setprecision;
void mean(const int[], int);
void median(int[], int);
void mode(int[], int[], int);
void bubbleSort(int[], int);
void printArray(const int[], int);
int main()
{
const int responseSize = 99;
int frequency[10] = {0},
response[responseSize] =
{6,7,8,9,8,7,8,9,8,9,
7,8,9,5,9,8,7,8,7,8,
6,7,8,9,3,9,8,7,8,7,
7,8,9,8,9,8,9,7,8,9,
6,7,8,7,8,7,9,8,9,2,
7,8,9,8,9,8,9,7,5,3,
5,6,7,2,5,3,9,4,6,4,
7,8,9,6,8,7,8,9,7,8,
7,4,4,2,5,3,8,7,5,6,
4,5,6,1,6,5,7,8,7};
mean(response, responseSize);
median(response, responseSize);
mode(frequency, response, responseSize);
return 0;
}
void mean(const int answer[], int arraySize)
{
int total = 0;
cout<<"********\n Mean\n********\n";
for(int j =0; j < arraySize; j++)
total += answer[j];
cout<<"The mean is the average value of the data\n"
<<"items. The mean is equal to the total of\n"
<<"all the data items divided by the number\n"
<<"of data items ("<< arraySize
<<"). The mean value for\nthis run is: "
<< total <<" / " << arraySize << " = "
<<setiosflags(ios::fixed | ios::showpoint)
<<setprecision(4)
<<static_cast<double>(total) / arraySize << "\n\n";
}
void median(int answer[], int size)
{
cout<<"********\n Median\n********\n"
<<" The unsorted array of response is";
printArray(answer, size);
bubbleSort(answer, size);
cout<<"\n\nThe sorted array is";
printArray(answer, size);
cout<<"\n\nThe median is element " << size/2
<<" of \nthe sorted " <<size
<<" element array. \nFor this run the median is "
<<answer[size/2] << "\n\n";
}
void mode(int freq[], int answer[], int size)
{
int rating, largest = 0, modeValue = 0;
cout<<"********\n Mode\n********\n";
for(rating = 1; rating <= 9; rating++)
freq[rating] = 0;
for(int j = 0; j < size; j++)
++freq[answer[j]];
cout<<"Response"<<setw(11)<<"Frequency"
<<setw(19)<<"Histogram\n\n"<<setw(55)
<<"1 1 2 2\n"<<setw(56)
<<"5 0 5 0 5\n\n";
for(rating =1; rating <= 9; rating++)
{
cout<<setw(8)<<rating<<setw(11)
<<freq[rating]<<" ";
if(freq[rating] > largest)
{
largest = freq[rating];
modeValue = rating;
}
for(int h = 1; h <= freq[rating]; h++)
cout<< '*';
cout<<'\n';
}
cout<<"The mode is the most frequent value.\n"
<<"For this run the mode is "<<modeValue
<<"which occured "<<largest<<" times. "<<endl;
}
void bubbleSort(int a[], int size)
{
int hold;
for(int pass =1; pass <size; pass++)
for(int j =0; j < size - 1; j++)
if(a[j] > a[j + 1])
{
hold = a[j];
a[j] = a[j+1];
a[j+1] = hold;
}
}
void printArray(const int a[], int size)
{
for(int j =0; j < size; j++)
{
if(j % 20 ==0)
cout<<endl;
cout<<setw(2) << a[j];
}
}
