Re: Count a Subquery with group clause

Sorry again, :)

Your query will run, but it will not make any sence. It is the same as write:
SELECT count(*) FROM
FROM people

Cheers,
  Vasily

On 8/9/06, Vasily Ivanov <[email protected]> wrote:
> Hi Bin,
>
> Your query will not run because you can not put in GROUP BY without
> count(*) in SELECT clause of subquery. If you want to run this:
> =================
> SELECT lastname, age, city, count(*)
> FROM  people
> GROUP BY lastname, age, city
> =================
> that you shoud do something like this in OJB:
> =================
> ReportQueryByCriteria query =
> QueryFactory.newReportQuery(People.class, new Criteria());
> query.setAttributes(new String[] { "lastname, age, city, count(*)" });
> subQuery.addGroupBy(new String[] { "lastname, age, city" });
> broker.getReportQueryIteratorByQuery(query);
> =================
>
> Cheers,
>   Vasily
>
> On 8/9/06, Bin Gao <[email protected]> wrote:
> > Hello All,
> >
> > How can I generate the following SQL statement using
> > OJB?
> >
> > SELECT count(*) FROM (
> >     SELECT   lastname, age, city
> >     FROM     people
> >     GROUP BY lastname, age, city
> > );
> >
> > Thanks for your help,
> >
> > Bin
> >
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