Thread: limiting rows in an query
In MySQL I can get the first 30 rows in an query doing this: SELECT * FROM `inscricoes` LIMIT 0, 30 How I do this in pgsql? -- Felipe Schnack Analista de Sistemas felipes@ritterdosreis.br Cel.: (51)91287530 Linux Counter #281893 Faculdade Ritter dos Reis www.ritterdosreis.br felipes@ritterdosreis.br Fone/Fax.: (51)32303328
Hi ,
Postgresql also follows the same syntax.
SELECT select_list
FROM table_expression
[LIMIT { number | ALL }] [OFFSET number]
On Mon, Sep 30, 2002 at 10:09:15AM -0300, Felipe Schnack wrote:
> In MySQL I can get the first 30 rows in an query doing this:
> SELECT * FROM `inscricoes` LIMIT 0, 30
> How I do this in pgsql?
> --
>
> Felipe Schnack
> Analista de Sistemas
> felipes@ritterdosreis.br
> Cel.: (51)91287530
> Linux Counter #281893
>
> Faculdade Ritter dos Reis
> www.ritterdosreis.br
> felipes@ritterdosreis.br
> Fone/Fax.: (51)32303328
>
>
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--
Varun
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Do not kill time ... else time will kill you
Felipe Schnack wrote: > In MySQL I can get the first 30 rows in an query doing this: > SELECT * FROM `inscricoes` LIMIT 0, 30 > How I do this in pgsql? SELECT * FROM "inscricoes" LIMIT 30 OFFSET 0; Best regards, Michael Paesold -- Werden Sie mit uns zum "OnlineStar 2002"! Jetzt GMX wählen - und tolle Preise absahnen! http://www.onlinestar.de
I think there isn't a portable way. In Oracle each row of a query have a sequential number, called "rowid", I think. So, in oracle you do somethink like ...AND ROWID >= 0 AND ROWID <20 Disgusting, isn't it? :-) On Mon, 2002-09-30 at 13:55, David Wall wrote: > Does anybody know how to do this in a "portable" way? For example, I don't > think Oracle has the LIMIT clause capability... > > David > -- Felipe Schnack Analista de Sistemas felipes@ritterdosreis.br Cel.: (51)91287530 Linux Counter #281893 Faculdade Ritter dos Reis www.ritterdosreis.br felipes@ritterdosreis.br Fone/Fax.: (51)32303328
This query (in Oracle) return nothing always ROWID is unique key and have another form (18 chars) and for two consecutive rows don't must conescutive ROWID. regrads In postgresql jdbc mising get/setFetchSize for Statement (now getFetchSize return complete query size and for big query we have 'out of memory') We can user LIMIT, but in another party software (IDE, J2EE server) we must have setFetchSize) regards haris peco On Monday 30 September 2002 06:56 pm, Felipe Schnack wrote: > I think there isn't a portable way. > In Oracle each row of a query have a sequential number, called > "rowid", I think. > So, in oracle you do somethink like > ...AND ROWID >= 0 AND ROWID <20 > Disgusting, isn't it? :-) > > On Mon, 2002-09-30 at 13:55, David Wall wrote: > > Does anybody know how to do this in a "portable" way? For example, I > > don't think Oracle has the LIMIT clause capability... > > > > David
Does anybody know how to do this in a "portable" way? For example, I don't think Oracle has the LIMIT clause capability... David
There isn't a portable way. On Mon, 2002-09-30 at 13:55, David Wall wrote: > Does anybody know how to do this in a "portable" way? For example, I don't > think Oracle has the LIMIT clause capability... > > David > > > ---------------------------(end of broadcast)--------------------------- > TIP 2: you can get off all lists at once with the unregister command > (send "unregister YourEmailAddressHere" to majordomo@postgresql.org) -- Felipe Schnack Analista de Sistemas felipes@ritterdosreis.br Cel.: (51)91287530 Linux Counter #281893 Faculdade Ritter dos Reis www.ritterdosreis.br felipes@ritterdosreis.br Fone/Fax.: (51)32303328
This isn't the same thing. On Fri, 2002-10-04 at 10:13, Dave Cramer wrote: > Once we get it working you can use setFetchSize > > Dave > On Mon, 2002-09-30 at 12:55, David Wall wrote: > > Does anybody know how to do this in a "portable" way? For example, I don't > > think Oracle has the LIMIT clause capability... > > > > David > > > > > > ---------------------------(end of broadcast)--------------------------- > > TIP 2: you can get off all lists at once with the unregister command > > (send "unregister YourEmailAddressHere" to majordomo@postgresql.org) > > > > > > > -- Felipe Schnack Analista de Sistemas felipes@ritterdosreis.br Cel.: (51)91287530 Linux Counter #281893 Faculdade Ritter dos Reis www.ritterdosreis.br felipes@ritterdosreis.br Fone/Fax.: (51)32303328
Once we get it working you can use setFetchSize Dave On Mon, 2002-09-30 at 12:55, David Wall wrote: > Does anybody know how to do this in a "portable" way? For example, I don't > think Oracle has the LIMIT clause capability... > > David > > > ---------------------------(end of broadcast)--------------------------- > TIP 2: you can get off all lists at once with the unregister command > (send "unregister YourEmailAddressHere" to majordomo@postgresql.org) > >