Re: PLS-00302 error

Thanks, Sybrand,
I have changed variable declaration as you advised but I still have the error PLS-00302 unfortunately.

Sybrand Bakker wrote in message
<957468750.7582.0.pluto.d4ee154e_at_news.demon.nl>...
>
>Gennady <gennadyb_at_halcosoftware.com> schreef in berichtnieuws
>3911cb41$0$6553_at_fountain.mindlink.net...
>> Hello,
>> In my PL/SQL code I have a variable of ROWTYPE and I try to access
>> the variable component using another variable, but I got an errorr:
>> "PLS-00302: component 'CNROW' must be declared".
>> The code is:
>> declare
>> cursor c1 is select * from old;
>> old_row old%ROWTYPE;
>> cursor c2 is select * from new;
>> new_row new%ROWTYPE;
>> cursor c3 is select column_name from user_tab_columns where table_name =
>> 'OLD';
>> cnrow user_tab_columns.column_name%TYPE;
>> begin
>> dbms_output.enable;
>> open c1;
>> open c2;
>> open c3;
>> loop
>> fetch c1 into old_row;
>> fetch c2 into new_row;
>> exit when (c1%notfound or c2%notfound);
>> end loop;
>> loop
>> fetch c3 into cnrow;
>> If (old_row.cnrow = new_row.cnrow) then -- error in this line!
>> dbms_output.put_line('SAME VALUE');
>> else
>> dbms_output.put_line('DIFFERENT VALUE');
>> end if;
>> exit when c3%notfound;
>> end loop;
>> end;
>>
>> How can I fix the problem??
>> Thanks,
>> Gennady
>>
>>
>
>Pl/sql is extreemly critical to scope. It is probably confused by your
 cnrow
>definition. My policy always has been to tag records to a cursor like this
>new_row c2%ROWTYPE. Less prone to error (changing the tablename without
>changing the rowtype definition) and it always works.
>IMO, but that's completely up to you, I would choose more descriptive
 names.
>
>Hth,
>
>Sybrand Bakker, Oracle DBA
>
>
>
Received on Thu May 04 2000 - 00:00:00 CDT