Oracle Tuning_Workshop

create table s_test(t1 number,t2 varchar2(20),t3 number);

begin
for i in 1..1000 loop
insert into s_test values(i,i+1,i);
end loop;
end;
/

begin
for i in 1..200000 loop
execute immediate 'select id,name,count(*) from s_test where id=100 group by id,name'
end loop;
end;
/
begin
for i in 1..1000 loop
insert into s_test values(i,i+1,i);
end loop;
end;
/
create table s_test(t1 number,t2,varchar2(20),t3 number);
begin
for i in 1..200000 loop
execute immediate 'select id,name,count(*) from s_test where id=100 group by id,name'
end loop;
end;
/

oracle 注册表卸载

<nobr><a><span class="x3i">指导中心</span></a>-&gt;<a href="http://10.243.130.74:1158/em/console/database/instance/sqltune?event=start&amp;advisoryCentralURL=/em/console/database/instance/advisorTasks%3FdbPageNum%3D1%26type%3Doracle_database%26target%3Dorcl%26event%3Dreload&amp;target=orcl&amp;type=oracle_database&amp;dbPageNum=1"><u><font color="#800080">SQL 优化指导</font></u></a>-&gt;<a href="http://10.243.130.74:1158/em/console/database/instance/waitDetails?event=doLoad&amp;waitClass=Overview&amp;target=orcl&amp;type=oracle_database&amp;dbPageNum=1"><u><font color="#800080">顶级活动</font></u></a></nobr>

alter index XX rename to s_test_in_index;

ADDM;

drop index t1_idx;

create unique indext1_idx rebuild online on t1(ename) onlogging---多一倍的空间;

set autotrace traceonly ;

set autotrace trace exp;