Hi,
PHP has several functions related to postgresql - including a function to fetch all the rows of the resultset at once into an array and then have a loop that extracts one row at a time from that :
search for all functions with pg_ prefix --- they are PHP functions relating to PostgreSQL. You need not fetch rows one by one from pg, instead fetch all the result rows into a php array and then loop to read them one by one from that array.
Regards,
Chandra ASGI
On Thu, Aug 7, 2008 at 7:03 AM, 窦德厚(ddh) <doudehou@xxxxxxxxx> wrote:
Hi, if I have such a table:
t_ref_id t_data
--------------------
1 'abc'
2 '321'
1 'ddd'
2 'xyz'
9 '777'
...
I want to get data with a special t_ref_id:
SELECT t_data FROM THETABLE WHERE t_ref_id = '1';
I must use a while loop to extract the data (I'm using PHP):
$rows = array();
while (($row = pgsql_fetch_assoc($result) !== false) {
$rows[] = $row;
}
And if there are many matched rows, such as many hundreds or thousands of rows, I think such a loop maybe inefficient.
How to do this in a more efficient way?
Thank you!
--
ddh
