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From Sylvain RICHET <derb...@gmail.com>
Subject Re: Using/Adressing a "row number" in a SELECT query
Date Fri, 17 Feb 2006 13:04:55 GMT
Thanks Legolas, for your explanations.

On 2/17/06, Legolas Woodland <legolas.w@gmail.com> wrote:
>
> Sylvain RICHET wrote:
>
> Though it is astonishing there is no way to address/access the "row
> number" on DERBY , whereas it's possible with other database systems...
>
> Have you ever heard about any workaround ?
>
> I dont think that you can find a workaround for this.
> if you file a Jira entry i will vote for it.
> Thanks
>
>
> On 2/17/06, Legolas Woodland <legolas.w@gmail.com> wrote:
> >
> > Sylvain RICHET wrote:
> >
> > Thanks Legolas,
> >
> > ... but limiting the fetch size by JDBC API supported methods
> > (setFetchSize) implies that i have already loaded ALL records from database,
> > no ?
> >
> >  I asked about this feature  sometimes before.
> > it is not present in current derby version , but you can vote on its
> > jira entry or create a jira entry for it.
> >
> >
> > However, the datas persisted in my DERBY database concern logging. It
> > means that i would have to get thousands of records.
> >
> > On 2/17/06, Legolas Woodland <legolas.w@gmail.com > wrote:
> > >
> > >  Sylvain RICHET wrote:
> > >
> > > Hi everyone,
> > >
> > > In a selection statement, i would like to get blocks of records.
> > > Thus, i need to filter records by a "row number", directly at the
> > > SELECT level.
> > >
> > > It seems that the way to address a row number is not (SQL) standard.
> > > (different "proprietary" implementations)
> > >
> > > In Oracle, there is the "rowid".
> > > In MySQL, the "LIMIT" clause can do it.
> > > In SQL Server, i think there is the "ROW_NUMBER() OVER..."
> > > In DB2 (on AS/400) , there is the "RRN" (Relative Record Number)...
> > >
> > > What about Derby database ?
> > > How is it implemented on this server ?
> > >
> > > I know i could use
> > >
> > > Thanks in advance.
> > >
> > >  Derby sql does not has any facilities for limiting number of rows in
> > > select statement.
> > > you can just limit the fetch size in JDBC resultSets.
> > >
> > >
> >
> >
>
>

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