Re: comunication between Oracle and MYSQL

2006-08-14 Thread Michael Loftis
--On August 14, 2006 9:11:30 PM +0530 balaraju mandala 
[EMAIL PROTECTED] wrote:



Hi All,

I need some suggestions from you. I need a comunication between Oracle
database with MySQL.


http://www.webmethods.com/

They sell software to do this.  Or...well... ActiveSoftware/ActiveWorks did 
which was bought by them.  Disclaimer, I worked at Active as the Unix Admin 
for the Demonstration center.  Someone else might have written some 
software to do it as well.  But you either need a third piece of software 
from someone else or it needs to be part of your app or you need to write 
it.  The databases will not do it for you natively.






In my application there is a situation is arising, where i need to take
some
data to MySql from a table which is in Oracle database (i am planning to
maintain that data in MySQL also). And from MySQL my application will use
it. This whole thing should be happen online.That is once some new data
was
inserted to Oracle table, that should update in MySQL table also.

It is totally new situation for me and i am totally confused. Please help
me
folks.

Thanks in advance.

regards,
Bala Raju Mandala.




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Re: comunication between Oracle and MYSQL

2006-08-14 Thread Renato Golin

balaraju mandala wrote:
In my application there is a situation is arising, where i need to take 
some

data to MySql from a table which is in Oracle database (i am planning to
maintain that data in MySQL also). And from MySQL my application will use
it. This whole thing should be happen online.That is once some new data was
inserted to Oracle table, that should update in MySQL table also.


Can't you just make your app connect directly to Oracle ? You'll drawn 
in lots of sync issues if you don't, specially if your app updates the 
database with data provided from Oracle.


Take this example: the user updates something, it goes to Oracle, than 
MySQL. Your system update lots of things out of it. Than, the user 
realizes he's wrong and update again the record, and some of your 
updates might not work, other things were deleted that shouldn't 
according to your business model.


I'm not saying you will have this problem, I'm just saying you might 
consider it before doing the Oracle-MySQL connector. Btw, I don't know 
any connector, and don't think a trigger on Oracle will work either. 
You'll probably have to live with a daemon replicating every 10 seconds 
or so.


cheers,
--renato

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