Warning: mysqli_query() expects at least 2 parameters, 1 giv

Question

i m geting this error please help me what is solution following is my code

 

<?php

require_once "connect.php";

$selectd ="select * from query";

$result=mysqli_query($selectd);

echo "<marquee direction='up' onmouseover='javascript:stop();' onmouseout='javascript:start();'>";

while($row=mysqli_fetch_array($result))

{

echo $row[1];

echo "<br><img src='admin/advertisment_images/".$row['image']."' height=400 weight=200> <hr>";

}

echo "</marquee>";

?>