Categories:
.NET (357)
C (330)
C++ (183)
CSS (84)
DBA (2)
General (7)
HTML (4)
Java (574)
JavaScript (106)
JSP (66)
Oracle (114)
Perl (46)
Perl (1)
PHP (1)
PL/SQL (1)
RSS (51)
Software QA (13)
SQL Server (1)
Windows (1)
XHTML (173)
Other Resources:
How To Break Output into Pages
How To Break Output into Pages? - MySQL FAQs - Managing Tables and Running Queries with PHP Scripts
✍: FYIcenter.com
If you have a query that returns hundreds of rows, and you don't want to present all of them to your users on a single page. You can break output into multiple pages, and only present 10 rows per page like what Google Website is doing. To do this, you need to modify your query with the LIMIT clause to return rows starting from the correct row number, and limited to 10 rows in the output.
The tutorial exercise below shows you how to break output into pages with 2 rows per page. It also calcualtes the total number of pages with a simple query criteria and order by condition. As an example, rows for page number 2 are returned.
<?php
include "mysql_connection.php";
$rowsPerPage = 2;
$where = " WHERE url LIKE '%co%'";
$order = " ORDER BY time DESC";
$curPage = 2;
$start = ($curPage-1) * $rowsPerPage;
$sql = "SELECT COUNT(*) AS count FROM fyi_links" . $where . $order;
print("SQL = $sql\n");
$rs = mysql_query($sql, $con);
$row = mysql_fetch_assoc($rs);
$numberOfPages = $row['count'] / $rowsPerPage;
print("Number of pages = $numberOfPages\n");
mysql_free_result($rs);
$sql = "SELECT * FROM fyi_links" . $where . $order
. " LIMIT ".$start.", ".$rowsPerPage;
print("SQL = $sql\n");
$rs = mysql_query($sql, $con);
while ($row = mysql_fetch_assoc($rs)) {
print($row['id'].", ".$row['url'].", "
. $row['notes'].", ".$row['time']."\n");
}
mysql_free_result($rs);
mysql_close($con);
?>
If you run this script, you will get something like this:
SQL = SELECT COUNT(*) AS count FROM fyi_links WHERE url LIKE '%co%' ORDER BY time DESC Number of pages = 3 SQL = SELECT * FROM fyi_links WHERE url LIKE '%co%' ORDER BY time DESC LIMIT 2, 2 101, dev.fyicenter.com, , 2006-07-01 20:24:46 102, dba.fyicenter.com, Nice site., 2006-07-01 20:24:46
2007-05-10, 6381👍, 0💬
Popular Posts:
What are the two fundamental objects in ADO.NET ? Datareader and Dataset are the two fundamental obj...
What is difference between SITP and UTP in testing ? UTP (Unit Test Plan) are done at smallest unit ...
How did you implement UML in your project ? PART II Implementation phase / Coding phase (Class diagr...
How is normally a project management plan document organized ? PMP document forms the bible of a pro...
How To Check the Oracle TNS Settings? - Oracle DBA FAQ - ODBC Drivers, DSN Configuration and ASP Con...