How to Find the Number of Rows in a MySQL Table?

php num rows

By Mr. Samy on Jun 15, 2020

<?php 
/*
Explination 
The mysqli_num_rows() function is an inbuilt function in PHP 
which is used to return the number of rows present in the result set. 
It is generally used to check if data is present in the database or not. 
To use this function, it is mandatory to first set up the connection with the MySQL database.
*/
	// Setting up connection with database Geeks 
	$con = mysqli_connect("localhost", "root", "", "testing"); 
	
	// Check connection 
	if (mysqli_connect_errno()) { 
		echo "Database connection failed."; 
	} 
	// Fetch Query
	$query = "SELECT Username, Password FROM users"; 
	
	// Execute the query and store the result set 
	$result = mysqli_query($con, $query); 
	
	if ($result) { 
		// it return number of rows in the table. 
		$row = mysqli_num_rows($result); 
		if ($row) { 
			 	printf("Number of row in the table : " . $row); 
			} 
		// close the result. 
		mysqli_free_result($result); 
	} 

// Output : Number of row in the table : 5
?> 

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mysql num rows

By CaligolaGG on Nov 11, 2020

//number of rows retrieved from a query
<?php

$link = mysql_connect("localhost", "mysql_user", "mysql_password");
mysql_select_db("database", $link);

$result = mysql_query("SELECT * FROM table1", $link);
$num_rows = mysql_num_rows($result);

echo "$num_rows Rows\n";

?>

Source: www.php.net

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mysql row_number() example

By Homeless Hamster on Nov 01, 2020

SET @row_number = 0; 
SELECT 
    (@row_number:=@row_number + 1) AS num, 
    firstName, 
    lastName
FROM
    employees
ORDER BY firstName, lastName    
LIMIT 5;

Source: www.mysqltutorial.org

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row number mysql

By Lucky Locust on Sep 28, 2020

SELECT row_number() over ( order by firstName) RowNumberSqeuence,FirstName from rowNumberDemo
 order by FirstName;

Source: www.tutorialspoint.com

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