Re: Simple Select Query

From: Andrey Razumovsky (razumovsky.andre..mail.com)
Date: Tue Aug 25 2009 - 04:27:51 EDT

  • Next message: Aristedes Maniatis: "Re: Simple Select Query"

    Yes, the query I mentioned will return List<String> (and if the objAttrubute
    you select is mapped as Integer, it will return List<Integer>). Also you can
    specify several columns, then result will be List<Object[]>

    2009/8/25 Null kühl <null.kuh..mail.com>

    > would that query return only the column name from the client table ? also
    > the return type will be an object of type client ? is there anyway that i
    > can retrieve from this sorta query a list of strings if am querying for a
    > name or a list of integers if am querying for a numeral value ?
    >
    > On Tue, Aug 25, 2009 at 10:09 AM, Andrey Razumovsky <
    > razumovsky.andre..mail.com> wrote:
    >
    > > Hi,
    > >
    > > You can use EJBQLQuery for that, something like "select c.name from
    > Client
    > > c", where Client is a mapped ObjEntity.
    > > http://cayenne.apache.org/doc/ejbqlquery.html
    > >
    > > Regards,
    > > Andrey
    > >
    > > 2009/8/25 Null kühl <null.kuh..mail.com>
    > >
    > > > I would like to do have a list of of a certain column in a certain
    > table,
    > > > by
    > > > sql language that means something like
    > > >
    > > > SELECT name FROM `client` c;
    > > >
    > > > it's my first time to use cayenne and i searched a lot in it's manual
    > for
    > > > doing such a query and the only way that was kind of close is writing
    > the
    > > > query manual , and i believe that this is not the best way to do it.
    > > >
    > > > so i was asking about a simple and easy way to do that.
    > > >
    > > > also the return of such a query will be a list of clients as List
    > > <clients>
    > > > c; , or since am querying for a certain field it can be something like
    > > List
    > > > <String> names;
    > > >
    > > > Please Advice.
    > > >
    > >
    >



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