Hi
Thank you for reading my post
I should design and implement an application which is going to run on tomcat 5.5 and Database can be  one of derby ,sqlServer , Mysql.
Problem is that this application should be able to have about 15 -20Transaction in 1 second .They have no extra power servers , just an ordinary hosting plan.
my question is : which of this database is better to choose ?
i thought that derby could be better because it can be embeded into my application .
can derby carry out 15-20 transacion in 1 secod ?is it feasible with using DAO pattern and plain JDBC ,or it need some other requirement ?
I have Struts  and mysql experience I learned derby but i did not use it yet.
before they ask me about  implementing this project they used PHP+Mysql and it seems that that application Hangs on +10  hits per second
each hit had some Insert one update and 2 select at least.
 
 
Thank you

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