RE: ** identify time/number for individual table, index accesss within a sql

  • From: "Powell, Mark D" <mark.powell@xxxxxxx>
  • To: <ajoshi977@xxxxxxxxx>, <oracle-l@xxxxxxxxxxxxx>
  • Date: Thu, 22 Jan 2009 12:14:52 -0500

If you have a trace why not run tkprof on it and look at the summary
information as a starting point.  Also one of the tkprof options is to
show the explain plan which would allow you to see the index/non-index
accesses.
 

-- Mark D Powell -- 
Phone (313) 592-5148 

 


________________________________

        From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of A Joshi
        Sent: Thursday, January 22, 2009 11:02 AM
        To: oracle-l@xxxxxxxxxxxxx; ajoshi97@xxxxxxxxx
        Subject: ** identify time/number for individual table, index
accesss within a sql
        
        
Hi, 
  For : OLTP database 
Oracle version : 10G
OS : SunSolaris

For a procedure taking a long time  : I have taken a 10046 trace. From
that I  can do tkprof and get the times for  individual sql. Now : How
do I get time taken for and number of table, index accesses within a sql
query. For example : i have sql joining upto 6 tables and some are full
table scan and some are index access. I want to know which one is taking
time. Please help and thanks.  I am able to estimate full table time by
running it from sqlplus. I think full table with some checks takes
longer. For index access : I can estimate for single index scan :
however : i do not know how index scans are taking place. From the
explain plan I was trying to go in the order : but there also doing the
order is not easy. Can someone help me figure this out. Thanks

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