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[RESOLVED] How to Query "nextval('sequence_name');" in EclipseLink [message #1021259]

Tue, 19 March 2013 14:51

Eclipse User

Hello all,

Well I'm new here and newbie with EclipseLink ,byt I would like to know, how to make get value from this query:

"SELECT nextval('sequence_name');"

I need to use the sequence generated by database on the webapp. This value will not be used on the database to persist anything, it's just a way to generate am unique value to a method execution/process...

It's possible to make something like this?
I read a litle about the EclipseLink and see some Screencasts but I couldn't understand how to make this query works.

Thanks all.

[Updated on: Wed, 20 March 2013 08:58] by Moderator

Re: How to Query "nextval('sequence_name');" in EclipseLink [message #1021641 is a reply to message #1021259]

Wed, 20 March 2013 08:58

Eclipse User

Well I make this works in The J2SE, but not in j2EE.

Re: How to Query "nextval('sequence_name');" in EclipseLink [message #1027042 is a reply to message #1021641]

Tue, 26 March 2013 09:56

Eclipse User

You can use a native SQL query.

em.createNativeQuery("SELECT MYSEQUENCE.NEXTVAL FROM DUAL").getSingleResult();

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