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  • Script:Logfile Switch Frequency Map

    该脚本可以用于列出Oracle日志文件切换的频率图:
    
    REM Log Switch Frequency Map
    
    col Day for a10
    col Date for a10
    set linesize 80
    
    
    SELECT trunc(first_time) "Date",
           to_char(first_time, 'Dy') "Day",
           count(1) "Total",
           SUM(decode(to_char(first_time, 'hh24'), '00', 1, 0)) "h0",
           SUM(decode(to_char(first_time, 'hh24'), '01', 1, 0)) "h1",
           SUM(decode(to_char(first_time, 'hh24'), '02', 1, 0)) "h2",
           SUM(decode(to_char(first_time, 'hh24'), '03', 1, 0)) "h3",
           SUM(decode(to_char(first_time, 'hh24'), '04', 1, 0)) "h4",
           SUM(decode(to_char(first_time, 'hh24'), '05', 1, 0)) "h5",
           SUM(decode(to_char(first_time, 'hh24'), '06', 1, 0)) "h6",
           SUM(decode(to_char(first_time, 'hh24'), '07', 1, 0)) "h7",
           SUM(decode(to_char(first_time, 'hh24'), '08', 1, 0)) "h8",
           SUM(decode(to_char(first_time, 'hh24'), '09', 1, 0)) "h9",
           SUM(decode(to_char(first_time, 'hh24'), '10', 1, 0)) "h10",
           SUM(decode(to_char(first_time, 'hh24'), '11', 1, 0)) "h11",
           SUM(decode(to_char(first_time, 'hh24'), '12', 1, 0)) "h12",
           SUM(decode(to_char(first_time, 'hh24'), '13', 1, 0)) "h13",
           SUM(decode(to_char(first_time, 'hh24'), '14', 1, 0)) "h14",
           SUM(decode(to_char(first_time, 'hh24'), '15', 1, 0)) "h15",
           SUM(decode(to_char(first_time, 'hh24'), '16', 1, 0)) "h16",
           SUM(decode(to_char(first_time, 'hh24'), '17', 1, 0)) "h17",
           SUM(decode(to_char(first_time, 'hh24'), '18', 1, 0)) "h18",
           SUM(decode(to_char(first_time, 'hh24'), '19', 1, 0)) "h19",
           SUM(decode(to_char(first_time, 'hh24'), '20', 1, 0)) "h20",
           SUM(decode(to_char(first_time, 'hh24'), '21', 1, 0)) "h21",
           SUM(decode(to_char(first_time, 'hh24'), '22', 1, 0)) "h22",
           SUM(decode(to_char(first_time, 'hh24'), '23', 1, 0)) "h23",
           round(count(1) / 24, 2) "Avg"
      FROM V$log_history
     group by trunc(first_time), to_char(first_time, 'Dy')
     Order by 1
    /
    
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  • 原文地址:https://www.cnblogs.com/macleanoracle/p/2967272.html
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