connect « Database « JPA Q&A





1. Problem connecting to a remote database using hibernate    stackoverflow.com

I'm trying to connect to a remote database (hosted on Netfirms www.netfirms.ca if anyone is curious) using hibernate. My mapping file is as follows:

<hibernate-configuration>
    <session-factory>
  ...

2. How to use JPA to connect to Derby    stackoverflow.com

A related query I asked: http://stackoverflow.com/questions/1892089/how-to-configure-package-a-simple-java-app-to-uss-jpa I have a simple Derby database which I can connect to via EJBs hosted in WebLogic. Now I would like to connect to it ...

3. how to connect to mutiple databases in hibernate    stackoverflow.com

I am new bee to Hibernate and trying out things. One thing that seems to amuse all is how to connect to different databases? I have two questions here
a) if in the same ...

4. How do I connect to multiple databases using JPA?    stackoverflow.com

I have an application using Java servlets/JSP's. There are multiple clients using my app, however each client has a separate database. All the databases have the same schema. I would like ...

5. Connecting the same database from two different web applications(GXT) using Hibernate    stackoverflow.com

I am working with two different web applications built upon GXT. But the problem is that both the applications are accessing the same database and the hibernate is not allowing to ...

6. How to connect to a database from outside of a web app?    stackoverflow.com

I am developing a java web app with Wicket (with jpa). Inside the Wicket Application i can access the database Persistence Unit with Persistence.createEntityManagerFactory() configured in persistence.xml. Now i want to have ...

7. Unable to connect Postgres with hibernate    stackoverflow.com

I am trying to connect Hibernate(3.2.5) with PostgreSQL 8.2., but I am getting following exception when I try to map the class Certificate with relation certificate in the hbm.xml file: ...

8. JPA: create database then connect    stackoverflow.com

I want to create database at the first time of an application deploying process. I am using JPA. So I consider two ways. 1). I have a full connection description in my ...

9. problem in connecting to DB2 using hibernate    coderanch.com

Please help me with your suggestions to solve the following problem. I encountered a DRDA error in an attempt to connect to DB2 database through hibernate and c3PO connection pooling. DB2 is located in windows-2003 server JDBC URL: jdbc:db2://:50000/ driver: com.ibm.db2.jcc.DB2Driver (type-4 driver) Though I could successfully connect to the database using "Driver.connect", the following exception is thrown when I tried ...





10. Connecting two different databases using Hibernate    coderanch.com

Hi, I am developing a project using Hibernate and the requirement is to connect to two different Databases 1. ORacle and 2. SQL Server. The same set of tables exist in both the tables.(i.e. name of Tables and their fields are same in both the databases). Both the databases need to be accessed during the life cycle of request from user. ...

11. Connecting Multiple database using Hibernate    coderanch.com

Howdy Greenhorn! You can set up multiple session factories and give them a different hibernate config file. So, you might have hibernate_ora.xml and hibernate_db2.xml. Then, each session will give a connection to a different database. If more complex associations are needed, there is a Hibernate project called Shards that is designed just for this purpose. You can fine out more about ...

13. Connecting to Multiple databases in hibernate    coderanch.com

Hi, If you can let us know what is the requirement then it might be more helpful. In case you need to connect to different databases because you are promoting your code through different development environments then that is easily achievable. While building the code for particular environment you can replace the DB using ant scripts and build.properties file. However if ...

14. how to connect to a database in hibernate    coderanch.com

documentation link is not opening at the moment. Works fine for me. I'd check your network settings - working with Hibernate without the documentation is not going to be fun. That code you posted looks out of date. I would get the documentation first and foremost before going to a book. Questions 1 and 2: yes. Question 3: The JDBC driver ...

16. Connect the same Database from two different web aplication    forum.hibernate.org

Newbie Joined: Sat Sep 18, 2010 6:40 am Posts: 1 Hello Everyone, I am using Hibernate to connect to my MySql Database using C3p0 connection pooling mechanism from my web application which is deployed in Tomcat. Eventually, now I need to develop a child application, using the same Database instance. So I have two application now : say Application A and ...





17. cannot able to connect DB using Myelcipse    forum.hibernate.org

18. How to connect two databases to hibernate?    forum.hibernate.org

19. Is it possible To connect same dataBase to connect twise.    forum.hibernate.org

HI to all, Thanks for reading. I am new to hibernate. i am in situation to connect to the student database. studentdatabase sche is same and the contents will me changed from one year to another year. i need to access student first year data and second year data. is it possible ,please give reply

20. Connecting to multiple databases    forum.hibernate.org

22. Can hibernate connect to multiple databases ?    forum.hibernate.org

I searched for "multiple databases" and "multiple datasources", but I dont think I came accross anything that gave me a definite answer. I am developing a system whereby the same information can reside in multiple databases. For example, when a user wants to search for a policy, the policy# can reside in db1, 2 or 3. Depending on which database it's ...

23. can't connect to SAP DB !!    forum.hibernate.org

hi everybody ! I'm quite new to hibernate, so i need a little help with this problem... I'm trying to connect to a sapdb and this is my hibernate.properties file: jdbc:sapdb://localhost/mydb com.sap.dbtech.jdbc.DriverSapDB user **** net.sf.hibernate.dialect.SAPDBDialect 5 20 1800 50 false net.sf.hibernate.transaction.JDBCTransactionFactory net.sf.hibernate.cache.HashtableCacheProvider update this ...

24. Connecting to multiple databases using a single MBean    forum.hibernate.org

A single MBean manages exactly one SessionFactory. A single SessionFactory manages exactly one database. If you need to interact with multiple databases, a SessionFactory must be defined for each (or use db-specific features like Oracle's DB_LINK). To have all these operations come under the auspices of a single transaction, use XA DataSources (one for each database). For each XA DataSource, setup ...

25. Connecting to database known only only by application    forum.hibernate.org

Hi, i have the following to implement: A web app used to store projects. Individual projects are store in separate database (requirement i cant change) Projects are created by users registered to the system. (ie, databases that exists will not be known beforehand) Users have many-one association with projects. The only database known beforehand (lets call it database A), is used ...

26. problem connecting to postgresql database    forum.hibernate.org

hibernate.cfg.xml Code: java:comp/env/jdbc/quickstart false net.sf.hibernate.dialect.PostgreSQLDialect ...

27. cannot connect to db through hibernate    forum.hibernate.org

Hi, I am trying to connect to hibernate 2.0.But before even starting the transaction it is throwing a error. Mapping documents:

29. Connecting to many database    forum.hibernate.org

Hi.. I'm using hibernate 2.0.3, My question : Is it possible to connect to more than one database within one application? I need to connect to SQL Server 2000 and Oracle 8i within one application. What settings i must set? Do I need more than one properties file? Can anyone show me how to do it? or give me a clue? ...

30. why database connect wasn't to be closed ??    forum.hibernate.org

websphere5.0 + hibernate2 + oracle9i +proxool logs: 2006-03-30 10:36:52,531 WARN [Servlet.Engine.Transports : 49] proxool.ehr ( ?:?) - 003773 (05/10/00) - #8 registered a statement as closed which wasn't known to be open. 2006-03-30 10:36:53,875 WARN [Servlet.Engine.Transports : 44] proxool.ehr ( ?:?) - 003803 (01/10/00) - #8 registered a statement as closed which wasn't known to be open. 2006-03-30 10:36:54,000 WARN [Servlet.Engine.Transports ...

31. can't connect do the database    forum.hibernate.org

32. How to connect to more than one database    forum.hibernate.org

To Whom It May Concern: I am currently using Hibernate 3.05, MyElicpse 4.1.1, Tomcat 5.5, JTDS driver for Microsoft SQL 2000, Microsoft SQL 2000. Does anybody know how to use Hibernate to connect to more than one database. Can anybody send me a link or url that talks about how to do this in Hibernate. How do we make it so ...

33. Need sample code for connecting two databases    forum.hibernate.org

Do you mean two tables? or do you really mean two databases. If you mean two databases, you can't join them with hibernate. You can have two session factories (1 for each database) and start two sessions and programatically move data between the two sessions. If you mean two tables, then you would use the join keyword. PLease provide more clarity. ...

34. Connect more than one database    forum.hibernate.org

Hi everybody, in my project I've to connect 4 databases, each one using a different instance of Informix. It is possible to do this with Hibernate? What do I do to have the connection? In that way I've to change hibernate.cfg.xml ? Excuse me for my poor english anh Thanks for the help !!!

35. When does Hibernate actually connect to the database    forum.hibernate.org

Sorry if this is a beginners question, but when does Hibernate actually connect to the database? Is it when SessionFactory is instanciated? Or when one calls Session's openSession method? The reason I'm asking is because connecting to a database is typically considered an 'expensive' operation. So if I only ever want to connect once, so I need a public static SessionFactory, ...

36. How to connect to multiple databases    forum.hibernate.org

37. Can not connect to Database in Next Day    forum.hibernate.org

Hi, I am using MySQL database for my hibernate application. Its working fine on first day, but next day (After 8 hours) when i am sending any request then in first request i am getting exception and in second request its wroking fine. I have implemented hibernate application using Annotations based API and using EntityManager. My Database Connections Properties are : ...

38. Connecting to different databases quickly    forum.hibernate.org

Hi! First of all, I'm using the JPA API for Hibernate. I'm writing a servlet which needs to connect to one of many databases, depending on the request. Because of this, I'm using application-managed entity mangers and resource-local transactions. To make it as quick as possible, I tried to create the EntityManagerFactory with all the common settings in init() and then ...

39. Need help in connecting To PostgreSQL    forum.hibernate.org

40. connect to multiple databases using hibernate    forums.oracle.com

To answer your question though, what you need to do is to offer the user a choice (GUI or not, does not really matter), or add some other trigger that will act the same way; namely, to cause the application to 'know' which DB to connect to. However you code your connection/s, add whatever ones you'll need and act on the ...