Posted By
Bajarangi soft ,
Posted On 18-09-2020
SQL MINIMUM and MAXIMUM Functions.
MIN(): It returns the lowest value of the column.
MAX(): It returns the largest value of the column.
SQL MIN() Syntax
SELECT MIN(column_name)
FROM table_name
WHERE condition;
SQL MIN() Syntax
SELECT MAX(column_name)
FROM table_name
WHERE condition;
Let's Learn.
1.Create database and table
Student table
In this student table we need to identify minimum value and maximum value by using SQL statement MIN() and MAX()
| StudentID | StudentName | Address | Country | DOB | Section |
Branch |
Percentage |
1 |
Liam | 23 MG road Banglore |
INDIA | 12/06 | A | CSE | 66 |
| 2 | Andrew | 2415 Anthony market str | Germany | 01/02 | A | ISE | 80 |
| 4 | Ryan | 18 Krishna sq. Banglore |
INDIA | 26/12 | B | EE | 67 |
| 5 | Charles | 878 Eli Berguvsvägen 8 | INDIA | 23/11 | C | ECE | 52 |
SELECT MIN(Percentage) AS lowestPercentage FROM Student
above SQL function selecting Minimum percentage as lowest percentage from the student table
Example for SQL MAX() function.
SELECT MAX(Percentage) AS highestPercentage FROM Student
<!DOCTYPE html>
<html lang="en">
<head>
<title>SQL MINIMUM and MAXIMUM Functions.</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css">
</head>
<body>
<div class="container">
<br>
<br>
<br>
<div class="text-center">
<h1>SQL MIN() and MAX() Function</h1>
</div>
<div class="well">
<?php
$connect = mysqli_connect("localhost", "root", "", "school_management");
if ($connect->connect_error) {
die("Connection failed: " . $connect->connect_error);
}
$sql_1 = "SELECT MIN(Percentage) AS lowestPercentage FROM Student";
$sql_2= "SELECT MAX(Percentage) AS highestPercentage FROM Student";
if($result_1 = mysqli_query($connect, $sql_1)){
if(mysqli_num_rows($result_1) > 0){
echo "<table class='table'>
<tr>
<th>lowestPercentage</th>
</tr>";
while($row = $result_1->fetch_assoc()){
echo "<tr>
<td>" . $row['lowestPercentage'] . "</td></tr>";
}
echo "</table>";
} else{
echo "No records found.";
}
}
echo"<br>";
if($result_2 = mysqli_query($connect, $sql_2)){
if(mysqli_num_rows($result_2) > 0){
echo "<table class='table'>
<tr>
<th>highestPercentage</th>
</tr>
";
while($row = $result_2->fetch_assoc()){
echo "<tr>
<td>" . $row['highestPercentage'] . "</td>
</tr>";
}
echo "</table>";
} else{
echo "No records found.";
}
}
?>
</div>
<br>
</div>
</body>
</html>