Can Enterprise Java Beans interact with any database system

Hello:
I was wondering if someone can tell me if the Enterprise javabeans can work with any database (like multi-valued database for example Universe)?
Thanks in advance.
Rino

Yes

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Can a java code interact with trigger

Hi guyz ,
is there any way by which a trigger can interact with JDBC ?
I want to check the database each time its updated and if some condition is violated , the info((row from table which has voilated some rule) is passed to java code which can then take necessary action . Can anyone help me out in this because i am not aware of any way by which a trigger can interact with java code .
Regards,
Nikhi

nikhil456123 wrote:
Hi guyz ,
is there any way by which a trigger can interact with JDBC ?
I want to check the database each time its updated and if some condition is violated , the info((row from table which has voilated some rule) is passed to java code which can then take necessary action . Can anyone help me out in this because i am not aware of any way by which a trigger can interact with java code .Note that even though it might be possible you might want to consider that it isn't necessarily a good idea.
Say the action is "send email". Then every time an insert/update/delete occurs then an email is sent. That would obviously slow down those operations a lot. Not to mention that if 1000 inserts occur then someone is going to get 1000 emails.
There can be alternatives that are much better.

How can I interact with a Database?

I've got a project I'm working on in my Java class, and I can't find out how to make the program interact with a database. I was wondering if anybody here could help me out at all? My partners and I have already gotten most of the program figured out (but not programmed), and this is giving us a little bit of trouble. Our books don't have this information, and our teacher told us to check here, so here I am. Any help would be appreciated. Thanks.

You need to get a jdbc driver for your database. Your vendor should provide you with one. If not then you can try looking for free implementations of that particular database.
This jdbc driver is used by your program to execute sql statements in the database itself, removing the need for you to handle all the nitty gritty stuff. Kind of like ODBC.
Like the earlier post pointed out, the tutorials is a good place to look at code samples
I've got a project I'm working on in my Java class,
and I can't find out how to make the program interact
with a database. I was wondering if anybody here
could help me out at all? My partners and I have
already gotten most of the program figured out (but
not programmed), and this is giving us a little bit of
trouble. Our books don't have this information, and
our teacher told us to check here, so here I am. Any
help would be appreciated. Thanks.

Can oracle database interact with sysbase database in real-time?

There are two database,one is oracle,one is sysbase,sysbase is produce database.My program only can visit oracle database,and can't directly visit sysbase database.My question is whether there is a directly link from oracle database to sysbase database,when I visit oracle,oracle database can interact with sysbase database through this link real time? How to realize above function? Please give plan for it.
Thanks in advance!
Best regards,
Edward

Yes there is. You have to create heterogeneous connection between these two databases
Take a look at below links:
http://www.dba-oracle.com/t_heterogeneous_database_connections_sql_server.htm
http://asktom.oracle.com/pls/asktom/f?p=100:11:0::::P11_QUESTION_ID:13401716754850
http://download-west.oracle.com/docs/cd/B10501_01/server.920/a96571/repmultdemo.htm

Enterprise Java Beans

Hi,
I am a java programmer. I have worked with applets,
servlets, jdbc, etc., but I have never worked with EJB's
Is there a good tutorial of it? Does it depend on certain
API's? Where can I find the classes? I would like to learn
and to develop some applications with EJB's. I will appreciate a lot if someone give me the 1,2,3... of EJB's.
Thanks in advance

There are suspisiously many tutorials and materials on the Web about EJB.
The principals ones are at Sun's J2EE site:
http://java.sun.com/j2ee/tutorial/doc/J2eeTutorialTOC.html
PetStore Demo
http://java.sun.com/j2ee/download.html#blueprints
JGuru Exercises:
http://developer.java.sun.com/developer/onlineTraining/EJBIntro/exercises.html
Also, look at TheServerSide.com
http://theserverside.com/home/index.jsp
Tutorial on Monson-Haefer "Enterprise Java Bean" book:
http://www.techquestion.net/ejbs/cabinbean1.html
Be careful, however, sometimes it is difficult to repeate
what you have in tutorial.
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Jacob Nikom

What is an enterprise java bean

Hi,
What is an enterprise java bean. How is it different from normal java means.
Thanks a lot,
Chamal.

Well an EJB is a object components that lives in the server's container's guts, there are 3 kinds of EJB:
* Session Beans: performs bussines operations
* Entity Beans: represents a table from a relational database
* Message Driven Beans: receives and controlls messages.
more information about it can be found at: http://java.sun.com/products/ejb/reference/docs/index.html

How to interact with external database in CQ5

Hi,
I need to interact with external database like SQL or Oracle to store some/fetch some data in CQ5. Can someone pls provide some help regarding the same. I guess I need to do it through JDBC. Please guide me step by step how to do this.
Thanks

Hi,
Bellow you find some references to the documentation related to CQ and DB configuration and developments:
http://dev.day.com/docs/en/cq/current/developing/jdbc.html
https://helpx.adobe.com/cq/kb/HowToConfigureSlingDatasource.html
Regards,
kasq

Using Enterprise Java Beans

Hi Guys,
Ive built a system which uses 8/9 servlets and connects to a postgres database, reads csv files and a few other things, now Ive been asked to implement this using java enterprise beans, how easy/difficult is this? how would I go about it and whats the advantages of using enterprise java beans?
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Tzaf

Can anyone help?
Thanks
Tzaf

Adding new enterprise java beans in STUDIO CREATOR

I downloaded the 30 days trial version of Studio creator.
In my server navigator pane there is no Enterprise Java Beans node. How can I enable this node

Hi,
Can we consider this a duplicate thread of :
http://swforum.sun.com/jive/thread.jspa?threadID=53446&tstart=0
Thanks,
RK

Missing Enterprise Java Beans Node

I downloaded the Studio Creator 30 day trial version.
But In the server navigator pane there is no Enterprise Java Beans node listed.
How can I enable the Enterprise Java Beans Node in Studio Creator? Or is it a limited version?
Please reply asap.
Thanks in advance

Hi.
Porduct version information was as follows....
Java Studio Creator(Build 040903).
Does this mean that I need to upgrade my IDE to update 7?
Thanks a lot for the reply. I almost spent half a day trying to enable the Enterprise Java Beans Node using creator options.
And can I deploy an ear file to creator which I have compiled using JDK1.5?
Thanx again.
Look forward to hearsing from u soon,
Kevin

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Step 1
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Enable guest logins* and log in as Guest. Don't use the Safari-only “Guest User” login created by “Find My Mac.”
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Test while logged in as Guest. Same problem?
After testing, log out of the guest account and, in your own account, disable it if you wish. Any files you created in the guest account will be deleted automatically when you log out of it.
*Note: If you’ve activated “Find My Mac” or FileVault, then you can’t enable the Guest account. The “Guest User” login created by “Find My Mac” is not the same. Create a new account in which to test, and delete it, including its home folder, after testing.
Step 2
The purpose of this step is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login, by a peripheral device, by a font conflict, or by corruption of the file system or of certain system caches.
Please take this step regardless of the results of Step 1.
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The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
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Can Enterprise Java Beans interact with any database system

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