METRIC：度量值，是一个相对值，用来比较多个会话所占用的资源，并非实际值。
根据以上的SQL_ID，可以查出具体的SQL语句。
select /*+ FULL(bom) */ id from bom where id=100001000
下面贴出V$SESSMETRIC各列的含义：
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select
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TO_CHAR(m.end_time,'DD-MM-YYYY HH24:MI:SS') e_dttm, -- Interval End Time
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m.intsize_csec/100 ints, -- Interval size in sec
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s.username usr,
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m.session_id sid,
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m.session_serial_num ssn,
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ROUND(m.cpu) cpu100, -- CPU usage 100th sec
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m.physical_reads prds, -- Number of physical reads
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m.logical_reads lrds, -- Number of logical reads
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m.pga_memory pga, -- PGA size at end of interval
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m.hard_parses hp,
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m.soft_parses sp,
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m.physical_read_pct prp,
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m.logical_read_pct lrp,
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s.sql_id
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from v$sessmetric m, v$session s
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where (m.physical_reads > 100
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or m.cpu > 100
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or m.logical_reads > 100)
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and m.session_id = s.sid
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and m.session_serial_num = s.serial#
- order by m.physical_reads DESC, m.cpu DESC, m.logical_reads DESC;
| E_DTTM | INTS | USR | SID | SSN | CPU100 | PRDS | LRDS | PGA | HP | SP | PRP | LRP | SQL_ID |
| 26-09-2014 10:59:23 | 15.12 | HK | 159 | 5 | 0 | 846 | 32224 | 1011080 | 0 | 2 | 100 | 99.76162 | 8h1qaqha580hh |
点击(此处)折叠或打开
- SELECT SQL_TEXT FROM V$SQLAREA WHERE SQL_ID='8h1qaqha580hh'
select /*+ FULL(bom) */ id from bom where id=100001000
V$SESSMETRIC
V$SESSMETRIC displays the metric values for all sessions.
| Column | Datatype | Description |
|---|---|---|
| BEGIN_TIME | DATE | Begin time of the interval |
| END_TIME | DATE | End time of the interval |
| INTSIZE_CSEC | NUMBER | Interval size (in hundredths of a second) |
| SESSION_ID | NUMBER | Session ID |
| SESSION_SERIAL_NUM | NUMBER | Session serial number |
| CPU | NUMBER | CPU usage |
| PHYSICAL_READS | NUMBER | Number of physical reads |
| LOGICAL_READS | NUMBER | Number of logical reads |
| PGA_MEMORY | NUMBER | PGA size at the end of the interval |
| HARD_PARSES | NUMBER | Number of hard parses |
| SOFT_PARSES | NUMBER | Number of soft parses |
| PHYSICAL_READ_PCT | NUMBER | Physical read ratio |
| LOGICAL_READ_PCT | NUMBER | Logical read ratio |
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/22621861/viewspace-1281486/ ，如需转载，请注明出处，否则将追究法律责任。
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