Write the queries to demonstrate the working of Summaries operation.

<?php

$conn=mysqli_connect('localhost','root','','sum');

if(!$conn){

echo "Data base connection fail";

}

$sumation="select sum(salary) as `salary_sumation` from stud";

$min="select min(salary) as `Minmum` from stud";

$max="select max(salary) as `Maximum` from stud";

$avg="select avg(salary) as `Average` from stud";

$count="select count(salary) as `Count` from stud";

$res_sum=mysqli_query($conn,$sumation);

$data_sum=mysqli_fetch_array($res_sum);

$res_min=mysqli_query($conn,$min);

$data_min=mysqli_fetch_array($res_min);

$res_max=mysqli_query($conn,$max);

$data_max=mysqli_fetch_array($res_max);

$res_avg=mysqli_query($conn,$avg);

$data_avg=mysqli_fetch_array($res_avg);

$res_count=mysqli_query($conn,$count);

$data_count=mysqli_fetch_array($res_count);

echo "Sumation is : \n ".$data_sum['salary_sumation'];echo "<br>";

echo "\n Minmum is : \n ".$data_min['Minmum'];echo "<br>";

echo "\n Maximum is : \n ".$data_max['Maximum'];echo "<br>";

echo "\n Average is : \n".$data_avg['Average'];echo "<br>";

echo "\n Count is :\n ".$data_count['Count'];echo "<br>";

  ?>