Re: GTT Locks

From: Jonathan Lewis <jonathan_at_jlcomp.demon.co.uk>
Date: Wed, 3 Mar 2004 18:03:31 -0000
Message-ID: <005201c40149$df5ef840$6702a8c0@Primary>

Notes in-line

Jonathan Lewis
http://www.jlcomp.demon.co.uk

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Original Message ----- From: "Ravi Kulkarni" <kulkarni.ravi_at_heb.com> To: <oracle-l_at_freelists.org> Sent: Wednesday, March 03, 2004 5:15 PM Subject: RE: GTT Locks

> John,
>

Jonathan

>
> The table GTT needs to be a Global Temporary table.
>

Absolutely true - I don't know how I managed to forget the GT bit when I was doing the test

Having corrected the error, I agree with your observations:

insert into gtt values (1);

Locks:
TY ID1 ID2 LMODE
-- ---------- ---------- ----------

TX     131091       7538          6
TO      30494          1          3

commit;
insert into gtt select rownum from user_objects where rownum = 1;

TY ID1 ID2 LMODE
-- ---------- ---------- ----------

TX     393219       7548          6
TM      30494          0          3
TO      30494          1          3

commit;
begin

        for i in 1..10000 loop
            insert into gtt values (i);
        end loop;

end;
/

TY ID1 ID2 LMODE
-- ---------- ---------- ----------

TX     458780       7532          6
TO      30494          1          3



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Received on Wed Mar 03 2004 - 12:00:57 CST