Thread: Getting data where select has a limit criteria

Hi,   I am trying to issue a query like "SELECT * from <some table> limit 
30". In psql command line interface it displays only 30 rows at a time. 
How will it behave if I use libpq. Is it going to return me only 30 rows ?


Regards,
Kashyap Jani

On Thu, Jan 12, 2006 at 10:48:08AM -0500, Kashyap Jani wrote:
>    I am trying to issue a query like "SELECT * from <some table> limit 
> 30". In psql command line interface it displays only 30 rows at a time. 

With LIMIT 30 psql should display only 30 rows altogether ("30 rows
at a time" suggests that you're getting more than 30 rows -- are
you?).

> How will it behave if I use libpq. Is it going to return me only 30 rows ?

If you put LIMIT 30 in the query then you should get at most 30
rows.  What happened when you tried it?

-- 
Michael Fuhr

Michael Fuhr wrote:

>On Thu, Jan 12, 2006 at 10:48:08AM -0500, Kashyap Jani wrote:
>  
>
>>   I am trying to issue a query like "SELECT * from <some table> limit 
>>30". In psql command line interface it displays only 30 rows at a time. 
>>    
>>
>
>With LIMIT 30 psql should display only 30 rows altogether ("30 rows
>at a time" suggests that you're getting more than 30 rows -- are
>you?).
>
>  
>
>>How will it behave if I use libpq. Is it going to return me only 30 rows ?
>>    
>>
>
>If you put LIMIT 30 in the query then you should get at most 30
>rows.  What happened when you tried it?
>
>  
>
Thanks Michael,   I returned 30 records back. I wasn't sure how it will work and 
thought I could just ask instead of actually writing a sample test 
program... But I ended up witting a sample program anyway..

Regards,
Kashyap