How to use Oracle DB Sequence to Generate Primary Key Values?

Dear Members,
I am using Oracle JDev V 11.1.2.1.0 and Oracle 11g XE Database.
I have followed the below steps:-
1/ Created an EmployeesEO
2/ Created an EmployeesVO
3/ Created a JSPX Page
4/ On the JSPX Page I have dragged the EmployeesVO and created it in ADF Table Format.
On this page when I create a new record, I want to generate employee id automatically based on a sequence which is created in the database of the HR Schema.
Please let me know how to achieve the above requirement.
Many thanks in advance.
Regards.

check [url http://mjabr.wordpress.com/2011/03/11/make-sequence-number-as-default-value/]Set an attribute’s default value with a sequence number

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You are using a surrogate, or synthetic primary key. For a primary key generated in this way, the value is inconsequential. All that matters is that it is unique and the tables with foreign keys into it, if any, also have that value set properly. But it doesn't matter if the value is 1, 100, 12344, 2222222222, etc. All you care about is the uniqueness.
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Hi Fusion777,
Ya, I've been searching around forums for an answer also. Apparently this is indeed a problem that has no general solution. It depends on 2 factors:
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<automatic-key-generation>
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</automatic-key-generation>I've tried that and it works :-)
I gather from your reply that those who are using JBoss are equally fortunate :-)
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Some other users seem to be against the idea of using auto-generated keys for precisely the reason that it is not a standard across database and application servers. See this thread:
http://forum.java.sun.com/thread.jspa?forumID=13&threadID=329896
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Whenever I am creating Apex form using wizard, it asks me to specify trigger/sequence/pl/sql function for populating primary key value.
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However, there is an issue with the Primary Keys in these table. The resulting INSERT statements use AutoInc as the type for the Primary Key in each Table. These INSERT statements contains "DEFAULT" for the value of each of these AutoInc fields. The customer would like to output an integer value for each of these Primary Key values in order to maintain referential integrity in their new system.
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George,
It sounds like the approach you are using is the correct one. This seems to be the cleanest solution to me especially since the customer is able to modify the generated SQL statements for their new system.
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Regards,
Chris Franz

How to use Oracle DB Sequence to Generate Primary Key Values?

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