Re: help in writing query

Hi Rosario,
Thanks for the link. I hope this will solve my problem.

Thanks,
Maria

On Tue, Jun 10, 2008 at 11:34 AM, Osvaldo Rosario Kussama <
osvaldo(dot)kussama(at)gmail(dot)com> wrote:

> maria s escreveu:
>
>>
>> I tried the query and it is returning result as ,
>> for a single entry in sample info in separate rows
>>
>> The result of the query as
>>
>> 1, prop1,value1
>> 1,prop2,value2
>> 2,prop1,value1
>> 2 prop2,value2
>> 2 prop3,value3
>>
>> but i want the output as single row per sample id like
>>
>> 1,value1,value2
>> 2 value1,value2,value3
>>
>> Is this possible? or functions will help to get the result?
>>
>
> Try tablefunc/crosstab:
> http://www.postgresql.org/docs/current/interactive/tablefunc.html
>
>
>
>> please help.
>>
>> Thanks,
>> -maria
>>
>> On Tue, Jun 10, 2008 at 11:03 AM, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com<mailto:
>> pavel(dot)stehule(at)gmail(dot)com>> wrote:
>>
>> Hello
>>
>> SELECT i.name <http://i.name>, p.property_name, p.property_value
>> FROM sample_info i
>> JOIN
>> sample_properties p
>> ON i.id <http://i.id> = p.id <http://p.id>
>>
>> maybe
>> Pavel
>>
>> 2008/6/10 maria s <psmg01(at)gmail(dot)com <mailto:psmg01(at)gmail(dot)com>>:
>> > Hello friends,
>> > I need help in write a query.
>> >
>> > I have 2 tables, one is sample_info and sample_properties,
>> >
>> > sample_info (id integer, string name)
>> > ------------------
>> > 1, c_01
>> > 2, c_02
>> > ...
>> >
>> > sample_properties(sample_id integer(ref. sample_info),
>> property_name string
>> > ,property_value string )
>> > -------------------------
>> > 1, prop1, value1
>> > 1, prop2, value2
>> > 2, prop1, value1
>> > 2, prop2, value 2
>> > 2, prop3, value3
>> >
>> >
>> > I would like to get the result by joining 2 tables, for sample
>> id 1 from
>> > sample_info, the result should be
>> >
>> > 1,c_01,value1,value2
>> >
>> > for sample 2
>> >
>> > 2, c_02,value1,value2,value3
>> >
>> > with property_value column header as property_name
>> >
>> > Can anyone help me to write a query /function/view to get the
>> above output?
>> >
>>
>
> Osvaldo
>