How to reduce the cost of procedure?

hi,
Suppose i have a procedure of more than 1000 lines,during normal processing it takes few seconds.So, how can one reduce the processing for the same.
Thanx ,
Piyush

DBMS_PROFILER is one way to analyse where the time is being spent. You can use this from the command line, or many GUI tools such as PL/SQL Developer provide a convenient interface.
http://download.oracle.com/docs/cd/B28359_01/appdev.111/b28370/tuning.htm
http://www.dbasupport.com/oracle/ora10g/Unleashing-DBMS_Profiler.shtml
http://www.allroundautomations.com/plsprofiler.html

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