Script:诊断解析等待和高version count
select * from
(select sql_id, count(child_number)
from v$sql_shared_cursor
group by sql_id
order by count(child_number) desc)
where rownum <=5;
-- Script Code
set serveroutput on
DECLARE
v_count number;
v_sql varchar2(500);
v_sql_id varchar2(30) := '&sql_id';
BEGIN
v_sql_id := lower(v_sql_id);
dbms_output.put_line(chr(13)||chr(10));
dbms_output.put_line('sql_id: '||v_sql_id);
dbms_output.put_line('------------------------');
FOR c1 in
(select column_name
from dba_tab_columns
where table_name ='V_$SQL_SHARED_CURSOR'
and column_name not in ('SQL_ID', 'ADDRESS', 'CHILD_ADDRESS', 'CHILD_NUMBER', 'REASON')
order by column_id)
LOOP
v_sql := 'select count(*) from V_$SQL_SHARED_CURSOR
where sql_id='||''''||v_sql_id||''''||'
and '||c1.column_name||'='||''''||'Y'||'''';
execute immediate v_sql into v_count;
IF v_count > 0
THEN
dbms_output.put_line(' - '||rpad(c1.column_name,30)||' count: '||v_count);
END IF;
END LOOP;
END;
/
oradebug setmypid
oradebug unlimit;
alter session set events 'immediate trace name systemstate level 266';
alter session set events 'immediate trace name library_cache level 11';
alter session set events 'immediate trace name cursordump level 16';
oradebug tracefile_name;
SELECT b.*
FROM v$sqlarea a ,
TABLE(version_rpt(a.sql_id)) b
WHERE loaded_versions >=100;
SELECT b.*
FROM v$sqlarea a ,
TABLE(version_rpt(NULL,a.hash_value)) b
WHERE loaded_versions>=100;
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