JPA entity has no primary key?

Question

I have an Entity class:

@Entity
@Table(name=\"CMC_MAP_SERVER_INFO\")
@NamedQuery(name=\"CmcMapServerInfo.getMapServer\", query=\"SELECT c FROM CmcMapServerIn         


        

Answer 1

You can mark the applicationName or the ip address as the primary key (though not auto generated). It's ok even if neither of these columns are declared as primary keys in the database.