support/oracle
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

2026-03-12 20:23:15

Browse Source
This commit is contained in:
root
2026-03-12 21:23:47 +01:00
parent eab4b36eca
commit 93039b8489
3332 changed files with 699614 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
tpt/demos/logical_ios_block_changes.sql Normal file
View File

@@ -0,0 +1,28 @@
-- Copyright 2018 Tanel Poder. All rights reserved. More info at http://tanelpoder.com
-- Licensed under the Apache License, Version 2.0. See LICENSE.txt for terms & conditions.
drop table t;
exec dbms_random.seed(0);
create table t(a) tablespace users as select dbms_random.random from dual connect by level <= 10000;
create index i on t(a);
@gts t
@stat changes "update (select a from t where a < 10000) set a = a + 1"
drop table t;
exec dbms_random.seed(0);
create table t(a) tablespace users as select dbms_random.random from dual connect by level <= 10000;
create index i on t(a);
@gts t
@stat changes "update (select /*+ index(t) */ a from t where a < 10000) set a = a + 1"
drop table t;
exec dbms_random.seed(0);
create table t(a) tablespace users as select dbms_random.random from dual connect by level <= 10000 order by 1;
create index i on t(a);
@gts t
@stat changes "update (select /*+ index(t) */ a from t where a < 10000) set a = a + 1"