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sql数据库走索引,怎么始终有物理读?(3)_MySQL

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Release: 2016-06-01 13:51:12
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   ame,scn,plhol,sqlbind,oshst,clientid,extid,lsqltext)

  3 values

  4  (:1,sysdate,:2,:3,:4,:5,:6,:7,:8,:9,:10,:11,:12,:13)

  01 call     count       cpu    elapsed       disk      query    current        rows

  02 ------- ------  -------- ---------- ---------- ---------- ----------  ----------

  03 Parse        1      0.00       0.00          0          0          0           0

  04 Execute      1      2.09       2.94          1          2          2           1

  05 Fetch        0      0.00       0.00          0          0          0           0

  06 ------- ------  -------- ---------- ---------- ---------- ----------  ----------

  07 total        2      2.09       2.94          1          2          2           1

  08

  09 Misses in library cache during parse: 1

  10 Optimizer mode: CHOOSE

  11 Parsing user id: SYS   (recursive depth: 1)

  12

  13 Elapsed times include waiting on following events:

  14   Event waited on                             Times   Max. Wait  Total Waited

  15   ----------------------------------------   Waited  ----------  ------------

  16   direct path read (lob)                          1        0.00          0.00

  原来是打开了审计功能。

 

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