You are right. There are at least twelve modules that I have identified so far. Some are easy and others are like speghatti. Learning the code, fixing and testing will require couple of months. I have to leave this project with in a month and I have SQL code that needs optimization. I have a huge buffer gets problem. So I am running against the time. So without messing up the logic and spend time learning fixing and testing the code, this one seems like a better option for me at this point. I am trying the project to do it right and do it where code needs the proper change even when I am gone.
Thanks for yours and every one elses response. Your advices are supporting the ideas I have in the back of my mind to do it right. --- Stephane Faroult <[EMAIL PROTECTED]> wrote: > Mohammed Shakir wrote: > > > > I am working on a database optimization project. My Shared pool is > > filled with SQL like > > > > select 0 from dual; > > select 1/1 from dual; > > select 1 - 1/(2 + 2) from dual; > > > > I tried to use the bind variables to minimize the literal SQL. > However > > I need a different SQL script for each case. > > > > select :b1 from dual; > > select :b1/:b2 from dual; > > select :b1 - :b2/(:b3 + :b4) from dual; > > > > first one will handle all cases for b1 from 0 to any number which > is > > good. And second sql will handle all the cases for any number for > b1 > > and b2. So I do reduce the literal SQL. However, I need to know > ahead > > of time what type of data I am calculating and then use the > appropriate > > SQL. > > > > I think the easy solution would be to use arithmetic. That is to > pass > > the string like ( 1 + 1 / (2 -2) ) to some function that can return > me > > the result of this sting. So I would not be using SQL script, to > > minimize SQL execution, sys.dual contention or literal SQL filling > > shared pool and causing both library cache and shared pool. Not to > > mention saving in CPU processing by not parsing SQL scripts. > > > > Anybody, aware of such function in PL/SQL? Is there any other way > to do > > calculations other than 'select 1 + 1 from dual' ? > > > > I would really appreciate if you could let me know. > > > > Thanks > > > > Mohammed Shakir > > > > ===== > > Mohammed Shakir > > CompuSoft, Inc. > > 11 Heather Way > > East Brunswick, NJ 08816-2825 > > (732) 672-0464 (Cell) > > (732) 257-6001 (Home) > > > > Mohammed, > > Don't you think, before starting with a PL/SQL function of death, > that > it *might* be easier to check the code and see where these > statements, > which are unlikely to be functional requirements, are used? Rewriting > the PL/SQL code around them is probably the most efficient way to get > rid of them. > > -- > Regards, > > Stephane Faroult > Oriole Software > -- > Please see the official ORACLE-L FAQ: http://www.orafaq.com > -- > Author: Stephane Faroult > INET: [EMAIL PROTECTED] > > Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 > San Diego, California -- Public Internet access / Mailing > Lists > -------------------------------------------------------------------- > To REMOVE yourself from this mailing list, send an E-Mail message > to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in > the message BODY, include a line containing: UNSUB ORACLE-L > (or the name of mailing list you want to be removed from). You may > also send the HELP command for other information (like subscribing). ===== Mohammed Shakir CompuSoft, Inc. 11 Heather Way East Brunswick, NJ 08816-2825 (732) 672-0464 (Cell) (732) 257-6001 (Home) __________________________________________________ Do You Yahoo!? Yahoo! Tax Center - online filing with TurboTax http://taxes.yahoo.com/ -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: Mohammed Shakir INET: [EMAIL PROTECTED] Fat City Network Services -- (858) 538-5051 FAX: (858) 538-5051 San Diego, California -- Public Internet access / Mailing Lists -------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).
