[Database] Usage tkprof

Usage: tkprof tracefile outputfile [explain= ] [table= ] [print= ] [insert= ] [sys= ] [sort= ] table=schema.tablename Use 'schema.tablename' with 'explain=' option. explain=user/password Connect to ORACLE and issue EXPLAIN PLAN. print=integer List only the first 'integer' SQL statements. aggregate=yes|no insert=filename List SQL statements and data inside INSERT statements. sys=no TKPROF does not list SQL statements run as user SYS. record=filename Record non-recursive statements found in the trace file. waits=yes|no Record summary for any wait events found in the trace file. sort=option Set of zero or more of the following sort options: prscnt number of times parse was called prscpu cpu time parsing prsela elapsed time parsing prsdsk number of disk reads during parse prsqry number of buffers for consistent read during parse prscu number of buffers for current read during parse prsmis number of misses in library cache during parse execnt number of execute was called execpu cpu time spent executing exeela elapsed time executing exedsk number of disk reads during execute exeqry number of buffers for consistent read during execute execu number of buffers for current read during execute exerow number of rows processed during execute exemis number of library cache misses during execute fchcnt number of times fetch was called fchcpu cpu time spent fetching fchela elapsed time fetching fchdsk number of disk reads during fetch fchqry number of buffers for consistent read during fetch fchcu number of buffers for current read during fetch fchrow number of rows fetched userid userid of user that parsed the cursor

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[Sample]

tkprof erpdev_ora_7893168_8703122.trc erpdev_ora_7893168_8703122.prf explain=etrade/etrade sort='exeela,fchela,prsela'

tkprof stxerp_ora_16781534.trc stxerp_ora_16781534.prf explain=apps/apps sort="prsela,exeela,fchela"

tkprof a.trc a.prf explain=apps/apps sort="prsela,exeela,fchela"

alter system set "_optimizer_push_pred_cost_based"=false

alter session set "_unnest_subquery"=FALSE

alter session set "_optimizer_connect_by_cost_based"=true;