--提取&beg_snap 、&end_snap

select * from dba_hist_snapshot x ;

--提取&dbid

select * from v$database;

--提取$inst_num

select * from v$instance;

運(yùn)行的時候輸入上面的值(如果需要輸入多次，那么輸入同樣值即可)

select from (select round(nvl((sqt.elap / 1000000), to_number(null)),2) "Elapsed Time (s)",

round( nvl((sqt.cput / 1000000), to_number(null)),2) "CPU Time (s)",

sqt.exec, round(decode(sqt.exec, 0, to_number(null),

(sqt.elap / sqt.exec / 1000000)),2) "Elap per Exec (s)",

round((100 (sqt.elap / (select sum(e.value) - sum(b.value)

from dba_hist_sys_time_model b,

dba_hist_sys_time_model e

where b.snap_id = &beg_snap and

e.snap_id = &end_snap and

b.dbid = &dbid and

e.dbid = &dbid and

b.instance_number = &inst_num and

e.instance_number = &inst_num and

e.stat_name = 'DB time' and

b.stat_name = 'DB time'))) ,2) norm_val ,

sqt.sql_id,

decode(sqt.module, null, null, 'Module: ' || sqt.module) SqlModule,

nvl(to_nchar(SUBSTR(st.sql_text,1,2000)) , (' SQL Text Not Available ')) SqlText

from ( select sql_id,

max(module) module,

sum(elapsed_time_delta) elap,

sum(cpu_time_delta) cput,

sum(executions_delta) exec

from dba_hist_sqlstat

where dbid = &dbid and

instance_number = &inst_num and

&beg_snap < snap_id and

snap_id <= &end_snap

group by sql_id ) sqt,

dba_hist_sqltext st

where st.sql_id(+) = sqt.sql_id and

st.dbid(+) = &dbid

order by nvl(sqt.elap, -1) desc,

sqt.sql_id)

where rownum < 65 and

(rownum <= 10 or norm_val > 1);

總結(jié)

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