Обсуждение: Re: [SQL] LIMIT

<tt>Mark Jewiss ha scritto:</tt><blockquote type="CITE"><tt>> > Could someone give me an example of a select *
withLIMIT</tt><br /><tt>> > used by 6.5?</tt><br /><tt>></tt><br /><tt>> SELECT * FROM foobar LIMIT
100</tt><tt></tt><p><tt>Oryou could use ROWCOUNT...</tt><tt></tt><p><tt>set rowcount = 10</tt><br /><tt>select * from
table</tt><tt></tt><p><tt>Regards,</tt><tt></tt><p><tt>Mark.</tt><br/><tt>--</tt><br /><tt>Mark Jewiss</tt><br
/><tt>KnowledgeMatters
Limited--------------------------------------------------------------</tt></blockquote><tt></tt><p><br/><tt>I don't
knownothing about ROWCOUNT.</tt><br /><tt>SET ROWCOUNT doesn't work for me.</tt><br /><tt>hygea=> set rowcount =
10;</tt><br/><tt>ERROR:  parser: parse error at or near "10"</tt><tt></tt><p><tt>PostgreSQL still accepts SET
QUERY_LIMITbut it doesn't work...</tt><tt></tt><p><tt>hygea=> set query_limit to '1';</tt><br /><tt>SET
VARIABLE</tt><br/><tt>hygea=> select * from contatori;</tt><br /><tt>tipologia|tabella       
|contatore|contatorebis</tt><br/><tt>---------+---------------+---------+------------</tt><br /><tt>SOTTO   
|Modena        |        1|           2</tt><br /><tt>SOPRA    |prestazioni    |       20|</tt><br /><tt>(2
rows)</tt><br/><tt>--------------------------------------------------------------</tt><br /><tt>PostgreSQL 6.5.0 on
i586-pc-linux-gnu,compiled by gcc 2.7.2.3</tt><br
/>-----------------------------------------------------------------------------------<br />José 

> I don't know nothing about ROWCOUNT.
> SET ROWCOUNT doesn't work for me.
> hygea=> set rowcount = 10;

Sorry, this is my faul. Correct SQL syntax is

set rowcount 10

Cheers,

Mark.

hygea=> set rowcount 10;
ERROR:  parser: parse error at or near "10"

Which version of Postgres are you using?


Mark Jewiss ha scritto:

> > I don't know nothing about ROWCOUNT.
> > SET ROWCOUNT doesn't work for me.
> > hygea=> set rowcount = 10;
>
> Sorry, this is my faul. Correct SQL syntax is
>
> set rowcount 10
>
> Cheers,
>
> Mark.

--
______________________________________________________________
PostgreSQL 6.5.0 on i586-pc-linux-gnu, compiled by gcc 2.7.2.3
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Jose'