effiecient query ?

From: Big Planet <bigplanet34_at_hotmail.com>
Date: Fri, 15 Mar 2002 16:33:21 -0800
Message-ID: <F001.0042B3EC.20020315163321@fatcity.com>

I have a system which stores messges in database ( just like out email messges ) and table having fileds like sent-to , from , cc, bcc , new_indicator (y/n) , draft_indiacator , receive-date , ... I have to write a proc to seach messages based on different criterian like , all messages from xyz or all messages with cc string ..% or messages before this date , messages after this date ..blah blah different combinations . I have primary key in table . Can someone suggest me how to write an efficient query here . I want to supply all possible parameters in one proc and but some / all of which may be null , If all are null I return a refcursor with all the data in table else i have to filter for not null paramters . I can put lots of nvl's here but query becomes very inefficient . Is it good idea to build a dynamic query based on supplied parameter .

TIA,
BigP

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Author: Big Planet
  INET: bigplanet34_at_hotmail.com

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