jqGrid Taking Long Time For Large Records

Question

I am using jgGrid. Its working perfectly but when i pass about 90,000 records and open the page in google chrome it takes around 8 sec to create a grid which in my case it s

Answer 1

Try loading JqGrid as on demand, i.e load smaller chunk of data at one time instead of all data and load remaining data on pagination.

Here is a sample code for reference

PHP with MySQL

...
$page = $_GET['page']; // get the requested page

$limit = $_GET['rows']; // get how many rows we want to have into the grid

$sidx = $_GET['sidx']; // get index row - i.e. user click to sort

$sord = $_GET['sord']; // get the direction

if(!$sidx) $sidx =1;

// connect to the database    
$db = mysql_connect($dbhost, $dbuser, $dbpassword)
or die("Connection Error: " . mysql_error());    

mysql_select_db($database) or die("Error conecting to db.");

$result = mysql_query("SELECT COUNT(*) AS count FROM invheader a, clients b WHERE a.client_id=b.client_id");

$row = mysql_fetch_array($result,MYSQL_ASSOC);

$count = $row['count'];    

if( $count >0 ) {
    $total_pages = ceil($count/$limit);
} else {
    $total_pages = 0;    
}

if ($page > $total_pages) $page=$total_pages;

$start = $limit*$page - $limit; // do not put $limit*($page - 1)

if ($start<0) $start = 0;

$SQL = "SELECT a.id, a.invdate, b.name, a.amount,a.tax,a.total,a.note FROM invheader a, clients b WHERE a.client_id=b.client_id ORDER BY $sidx $sord LIMIT $start , $limit";

$result = mysql_query( $SQL ) or die("Couldnt execute query.".mysql_error());

$responce->page = $page;

$responce->total = $total_pages;

$responce->records = $count;

$i=0;

while($row = mysql_fetch_array($result,MYSQL_ASSOC)) {

    $responce->rows[$i]=$responce->rows[$i]['cell']=array($row[id],$row[invdate],$row[name],$row[amount],$row[tax],$row[total],$row[note]);

    $i++;
} 

echo $json->encode($responce); // coment if php 5
//echo json_encode($responce);
...