RE: sql with bind variable in stored procedure doesnt use stored

Shaleen,  

I have not been able to dig deeper (yet) into this. However the following _may_ be why this is not working: I believe that the stored outline is matched with an about-to-be-executed SQL using the Hash value of the SQL. The hash value is computed by some mumbo-jumbo based on the actual SQL string - thus even a single extra space in the to-be-executed SQL will not pick up the previously stored Outline since the hash value will be different. Also, the hash value may depend on the shared_pool_size and shared_pool_reserved_sizes and any changes will require Outline to be generated again... (Gurus may want to add to this)  

John Kanagaraj
Oracle Applications DBA
DBSoft Inc
(W): 408-970-7002

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• The opinions and statements above are entirely my own and not those of my employer or clients **

-----Original Message-----
Sent: Wednesday, December 11, 2002 9:29 PM To: Multiple recipients of list ORACLE-L outlines

I tried this even without bind variable and could not make it work from a stored procedure. ANy help over here will be very appreciated Folllowing is the testcase.  

Thanks
Shaleen  

create table emp (num number,sal number); insert into emp values(1,1);  

create or replace procedure t as
total number:=0;
cursor c1 is select sal from emp;
begin
for i in c1 loop
total:=total+i.sal;
dbms_output.put_line('total salary is $'||total); end loop;
end;
/  

exec outln_pkg.drop_by_cat('DEFAULT');
create outline on select sal from emp;
select used from dba_outlines;
alter session set QUERY_REWRITE_ENABLED=true; alter session set STAR_TRANSFORMATION_ENABLED=true; alter session set use_stored_outlines=true; exec t;
select used from dba_outlines;
select sal from emp;
select used from dba_outlines;
----- Original Message -----

To: orACLE-L_at_fatcity.com <mailto:orACLE-L_at_fatcity.com> Sent: Wednesday, December 11, 2002 2:08 PM outlines

All,  

I am unable to make stored outlines work for sql statements with bind variable in stored procedures. Please see following sample code and tell me what am I doing wrong.  

Thanks in Advance  

create table emp (num number,sal number); insert into emp values(1,1);  

create or replace procedure t(num_i number) as total number;
cursor c1(p1 number) is select sal from emp where num=p1; begin
for i in c1(num_i) loop
total:=total+i.sal;
dbms_output.put_line('total salary is $'||total); end loop;
end;
/  

alter session set sql_trace=true;
exec t(1);
alter session set sql_trace=false;  

create outline on select sal from emp where num=:b1; select used from dba_outlines;  

alter session set QUERY_REWRITE_ENABLED=true; alter session set STAR_TRANSFORMATION_ENABLED=true; alter session set use_stored_outlines=true; exec t(2);
select used from dba_outlines;  

variable b1 number;
exec :b1:=1;
select sal from emp where num=:b1;
select used from dba_outlines;  

Thanks
Shaleen

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