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  • Dingjun123:DBMS_PROFILER

    DECLARE
    ReturnCode BINARY_INTEGER;
    BEGIN
    ReturnCode := DBMS_PROFILER.start_profiler ('Profiler Demo 2');
    nocopy_test.test_copy (400, 1);
    ReturnCode := DBMS_PROFILER.stop_profiler;
    DBMS_OUTPUT.put_line ('Profiler return code=' || ReturnCode);
    COMMIT;
    END;

    SQL> WITH plsql_qry AS (
    2 SELECT u.unit_name, line#,
    3 ROUND (d.total_time / 1e9) time_ms,
    4 round(d.total_time * 100 / sum(d.total_time) over(),2)
    pct_time,
    5 d.total_occur as execs,
    6 substr(ltrim(s.text),1,40) as text,
    7 dense_rank() over(order by d.total_time desc) ranking
    8 FROM plsql_profiler_runs r JOIN plsql_profiler_units u
    USING (runid)
    9 JOIN plsql_profiler_data d USING (runid, unit_number)
    10 LEFT OUTER JOIN all_source s
    11 ON ( s.owner = u.unit_owner
    12 AND s.TYPE = u.unit_type
    13 AND s.NAME = u.unit_name
    14 AND s.line = d.line# )
    15 WHERE r.run_comment = ‘Profiler Demo 2’
    16 )
    17 select unit_name,line#,time_ms,pct_time,execs,text
    18 from plsql_qry
    19 where ranking <=5
    20 ORDER BY ranking;

    用这个,很容易定位过程中的top5

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  • 原文地址:https://www.cnblogs.com/tracy/p/2092416.html
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