This week's book giveaway is in the Agile and other Processes forum.
We're giving away four copies of The Mikado Method and have Ola Ellnestam and Daniel Brolund on-line!
See this thread for details.
The moose likes Object Relational Mapping and the fly likes JPA Big Moose Saloon
  Search | Java FAQ | Recent Topics
Register / Login


Win a copy of The Mikado Method this week in the Agile and other Processes forum!
JavaRanch » Java Forums » Databases » Object Relational Mapping
Reply Bookmark "JPA" Watch "JPA" New topic
Author

JPA

Ravi kapa
Ranch Hand

Joined: Jan 05, 2012
Posts: 73
Hi i am learning JPA and i have basic doubt about why we go for JPA and what is the difference between rdbms and odbms.can anyone give some example so that i can understand easily..
James Sutherland
Ranch Hand

Joined: Oct 01, 2007
Posts: 550
See,

http://en.wikibooks.org/wiki/Java_Persistence/Why_use_JPA_or_ORM%3F

In general RDBMS are much (much, much) more used than ODBMS. Even with an ODBMS you would still want a standard API to access it, and some ODBMS's also use JPA as there API.

TopLink : EclipseLink : Book:Java Persistence : Blog:Java Persistence Performance
 
I agree. Here's the link: http://ej-technologies/jprofiler - if it wasn't for jprofiler, we would need to run our stuff on 16 servers instead of 3.
 
subject: JPA
 
Similar Threads
@JoinColumn Question
Using Hibernate EntityManager
JPA book query
I have to use EJB in my project. Where?
Specifications version for the JPA exam