Re: Reproducing ORA-04036

This worked for me in 19.3

 1 declare
  2 type v1_type is table of varchar2(32767) index by binary_integer;   3 v1 v1_type;
  4 begin
  5 for i in 1..30000 loop
  6 v1(i) := rpad('x',32767);
  7 end loop;
  8* end;
SQL> /
declare
*
ERROR at line 1:
ORA-04036: PGA memory used by the instance exceeds PGA_AGGREGATE_LIMIT

The pga_aggregate_limit was 1GB, a loop size of about 26000 would probably have been sufficient.

Regards
Jonathan Lewis

On Fri, Aug 21, 2020 at 1:51 PM Noveljic Nenad <nenad.noveljic_at_vontobel.com> wrote:

> Anybody has a script for reproducing ORA-04036 in 19c? Allocating PL/SQL
> collections doesn’t trigger the error:
>
>
>
> SQL> select max(pga_alloc_mem)/power(1024,2) from v$process ;
>
> MAX(PGA_ALLOC_MEM)/POWER(1024,2)
> --------------------------------
> 6466.71202
>
> SQL> show parameter pga
>
> PARAMETER_NAME TYPE VALUE
> ------------------------------------------------------------ -----------
> ----------------------------------------------------------------------------------------------------
> pga_aggregate_limit big integer 2G
>
>
> SQL> !dbhome
> .../product/19.7.0.0.200414
>
>
>
> I had a nice test case with excessive PGA allocations during parsing in
> 12c, but “unfortunately” Oracle fixed that problem.
>
>
>
> Best regards,
>
>
>
> Nenad
>
>
>
> https://nenadnoveljic.com/blog/about
>
>
>
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