Re: [eclipselink-users] Problem in mapping Table having no Primary Key

[Andrei Ilitchev <andrei.ilitchev@xxxxxxxxxx>]

If there are the field(s) that - just like primary key - define the 
identity of the row, then map them as Ids.
It's impossible to map Java objects to/from database rows unless the 
latter have identity (as Java objects do).
On 7/30/2010 9:01 AM, Tanujit Chowdhury wrote:
> Hi,
> I have a table in MSSQL DB server which does not have any primary key.
> When I have tried to deploy the persistance unit it gave exception as:
> Entity class [class net.msl.usicaf.jpa.entities.Userid] has no primary
> key specified. It should define either an @Id, @EmbeddedId or an
> @IdClass.
>
> I am using Eclipselink 1.0.2, and Oracle Weblogic 10.3.2.
>
> How to solve this?
>
>