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From Peng Tuck Kwok <pengt...@makmal.net>
Subject Re: JDBC & ORACLE implementation !
Date Tue, 25 Feb 2003 07:31:22 GMT
If you have already started on a filesystem and if it does what you want 
it  to do at a reasonable speed then stick with it :) .


Swapneel Dange wrote:
> hey CHONG , PENG !
> 
> i think i have really given up the idea of putting up ORACKLE for my 
> support. after all this discussion, i just think that there i sno urgent 
> need for me to take up a HUMONGOUS taks of using ORACLE and i guess i 
> will IMPLEMENT the SQLPLUS or the FILESYSTEM as my alternatives to the 
> DATABASE application.
> 
> but in the end i would really like to know as to between SQLPLUS or 
> FILESYSTEM, which will be convinient for me to HANDLE string stripping , 
> string comparison and all that stuff ! ( BTW, i have really started 
> implementing the FILESYSTEM to a good level )
> 
> do commment about this !
> 
> Swapneel Dange
> 505-642-4126
> http://www.cs.nmsu.edu/~sdange
> 
> 
> 
> 
> 
> 
> 
> 
>> From: Chong Yu Meng <chongym@cymulacrum.net>
>> Reply-To: "Tomcat Users List" <tomcat-user@jakarta.apache.org>
>> To: Tomcat Users List <tomcat-user@jakarta.apache.org>
>> Subject: Re: JDBC & ORACLE implementation !
>> Date: Tue, 25 Feb 2003 07:06:31 +0800
>>
>> I think if you take Oracle installation, configuration and maintenance 
>> out of the picture, you definitely have a much more workable plan. I 
>> agree with Peter, in that designing the tables and application logic 
>> are going to be tough. I once wrote a servlet that processed CDR data 
>> from a Cisco switch, and I spent a lot of time getting the logic just 
>> right. If I understand you correctly, Swapneel, you need the database 
>> for storage only, correct ? Are you planning to use the Oracle text 
>> indexer, or are you implementing that yourself?
>>
>> One last thing : JDBC may take you a shorter time to learn than the 2 
>> weeks I put down in an earlier email. On reflection, that is probably 
>> padding too much, but I recommend that you do not underestimate the 
>> time taken to get the JDBC connection going, especially for Oracle. 
>> I've had problems with 8.1.5 before and had to resort to DataDirect 
>> drivers. 8.1.7 seems to be ok, though.
>>
>> Regards,
>> chong
>>
>>
>> Peter Lin wrote:
>>
>>>
>>> overall, using JDBC with Tomcat is the easy part. Deciding how to 
>>> implement your tables and application logic will be the hard part. If 
>>> your data is not normalized and doesn't need to be, then the first 
>>> thing you should look into is statistical analysis of text. there are 
>>> several well tested algo's for doing this type of processing. 
>>> Unfortunately I don't know the name of the algo's. I worked on 
>>> integrating personalization applications a couple years back relating 
>>> to filtering news.
>>>
>>> If your needs aren't too complex, it shouldn't take too long to 
>>> implement some form of statistical analysis. Using file system to 
>>> store the entire text doesn't necessarily mean you can't store the 
>>> text summaries in Oracle. Google for related topics and you should be 
>>> to find some examples. If you're needs are more complex, you'll need 
>>> to look into grammar based parsing, which is a slow process. Most of 
>>> the comparison between grammar based and statistical parsing has 
>>> shown that statistical is more effective. hope that helps.
>>>
>>> peter
>>>
>>> Swapneel Dange <s_dange@hotmail.com> wrote:hey peter, mike & chong
!
>>>
>>> so if i stay with a small thing like SQLPLUS, the JDBC connectivity 
>>> wont be a tough thing to do as compared to the ORACLE implementation. 
>>> right ? because in last few days after consulting with some people 
>>> in-house here, i am thinking over the OPTION of SQLPLUS.
>>>
>>> do commment on this !
>>>
>>> Swapneel Dange
>>> 505-642-4126
>>> http://www.cs.nmsu.edu/~sdange
>>>
>>>
>>
>>
>>
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