Thread: help -- cursor inside a function

hello ,
i have a procedure as below.

-------------------------------------------------------------------------------------------------------------

create function retrec(integer) returns integer
as
 'declare
        uid alias for $1;
  begin
        declare retrec_cur cursor for select * from jd_user_master where

um_user_id>uid;
        if found then
                fetch 1 from retrec_cur;
                move next from retrec_cur;
                return 1;
        end if;
  end;'
language 'plpgsql';

-------------------------------------------------------------------------------------------------------------------------

this gets created , but while running it i get the error below,
-------------------------------------------------------------------------------------------------------------------

NOTICE:  plpgsql: ERROR during compile of retrec near line 5
ERROR:  parse error at or near "cursor"

--------------------------------------------------------------------------------------------------------------------------

why this is so ? can anyone help me out ? thanx in advance.

> hello ,
> i have a procedure as below.
>
> --------------------------------------------------------------------------
-----------------------------------
>
> create function retrec(integer) returns integer
> as
>  'declare
>         uid alias for $1;
>   begin
>         declare retrec_cur cursor for select * from jd_user_master where
>
> um_user_id>uid;
>         if found then
>                 fetch 1 from retrec_cur;
>                 move next from retrec_cur;
>                 return 1;
>         end if;
>   end;'
> language 'plpgsql';
> --------------------------------------------------------------------------
-----------------------------------------------
>
> this gets created , but while running it i get the error below,
> --------------------------------------------------------------------------
-----------------------------------------
>
> NOTICE:  plpgsql: ERROR during compile of retrec near line 5
> ERROR:  parse error at or near "cursor"
> --------------------------------------------------------------------------
------------------------------------------------
>
> why this is so ? can anyone help me out ? thanx in advance.

You may use query loops, such as:

DECLARE
    nextrow RECORD;
BEGIN
    FOR nextrow IN SELECT * FROM <table> WHERE <condition> ORDER BY <field>
LOOP
        ...
    END LOOP;
END;

See postgresql HTML documentation for further info.

Alex Bolenok.