Re: Returning Rows in Procedure

Pavel Stehule wrote:
> Hello
>
> you have to use a dynamic sql
>
> look on statement
>
> FOR r IN EXECUTE
> or RETURN QUERY EXECUTE
>

Can u explain in the example, I find it difficult to understand .

I think we have to specify  return type while creating procedures.

Thanks
> Regards
>
> Pavel Stehule
>
> 2011/5/24 Adarsh Sharma <adarsh.sharma@orkash.com>:
>
>> Dear all,
>>
>> I need to return the rows of a table which was also created in that
>> procedure.
>>
>> I know it is very easy when the table is existed before and we can specify
>> like this to return
>>
>> create function a(integer) returns setof exist_table as $$
>>
>> But it gives error when the table is also created in the procedure like
>> below :
>>
>> create function a(integer) returns setof record as $$
>> declare
>> a text;
>> begin
>> execute 'insert into a values('asdd');
>> execute 'insert into a values('affffsdd');
>> execute 'insert into a values('affsdd');
>> execute 'insert into a values('ashjgdd');
>> execute 'insert into a values('asfjfgddd');
>>
>> ---Now i want to return the rows of a
>> DECLARE
>>  r a%ROWTYPE;
>> BEGIN
>>  FOR r in SELECT * FROM a
>>  LOOP
>>     RETURN NEXT r;
>>  END LOOP;
>>  RETURN;
>>  END;
>> END;
>> $$ LANGUAGE 'plpgsql' ;
>>
>> ERROR:  relation "user_news_tmp2" does not exist
>> CONTEXT:  compilation of PL/pgSQL function "create_user_report2" near line
>> 22
>>
>> How to achieve this ?
>>
>> Thanks & best Regards,
>> Adarsh
>>
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>>