Group by clause gives error

[yo...@wipro.com]

Hi all,

I have a dummy table having values


date       name      type
------------------------------
01           x            a
01           y            a
01           z            b
02           u            c
02           x            d
03            t            a


I want to operate operation that

count the name and type on the same date and order by date.

I wrote this query

select date,  count(*), name from demotable group by date;

its throws error:

Error in semantic analysis:  Expression not in GROUP BY key 'name'  (Although this query works in Mysql )


Please suggest

Thanks & Regards
Yogesh Kumar






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Re: Group by clause gives error

[MiaoMiao <li...@gmail.com>]

You need to apply an aggregate function to NAME since it's not used as
a GROUP BY key.

Without an aggregate function, your query will be confusing. I mean, what does
`select name from sometable group by date;`
mean anyway?

Try

select date,  count(type), count(name) from demotable group by date;


On Fri, Aug 10, 2012 at 2:53 PM,  <yo...@wipro.com> wrote:
> Hi all,
>
> I have a dummy table having values
>
>
> date       name      type
> ------------------------------
> 01           x            a
> 01           y            a
> 01           z            b
> 02           u            c
> 02           x            d
> 03            t            a
>
>
> I want to operate operation that
>
> count the name and type on the same date and order by date.
>
> I wrote this query
>
> select date,  count(*), name from demotable group by date;
>
> its throws error:
>
> Error in semantic analysis:  Expression not in GROUP BY key 'name'
> (Although this query works in Mysql )
>
>
> Please suggest
>
> Thanks & Regards
> Yogesh Kumar
>
>
>
>
>
> Please do not print this email unless it is absolutely necessary.
>
> The information contained in this electronic message and any attachments to
> this message are intended for the exclusive use of the addressee(s) and may
> contain proprietary, confidential or privileged information. If you are not
> the intended recipient, you should not disseminate, distribute or copy this
> e-mail. Please notify the sender immediately and destroy all copies of this
> message and any attachments.
>
> WARNING: Computer viruses can be transmitted via email. The recipient should
> check this email and any attachments for the presence of viruses. The
> company accepts no liability for any damage caused by any virus transmitted
> by this email.
>
> www.wipro.com