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POHibernate fails to create foreign key in Oracle between different schemas
 

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  1. POHibernate fails to create foreign key in Oracle between different schemas
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    <p>I have a java7+Spring3.2.0+hibernate3 application that used a <code>Postgresql</code> database. Now I have to migrate this application to use the latest Oracle.</p> <p>When at startup I set hbm2ddl to "create" the tables are created correctly, but all the foreign keys that involve tables located in different schemas fails with the error: <code>ORA-00942: table or view does not exist</code></p> <p>The database is quite big and involve many different schemas. I can't change the structure of the database. Here is an example of the mapping:</p> <pre><code>@Entity @Table(name="brands", schema="live", uniqueConstraints=@UniqueConstraint(columnNames={"name"})) public class Brand implements Serializable { @Id @GeneratedValue(strategy=GenerationType.SEQUENCE, generator="brands_seq_gen") @SequenceGenerator(name="brands_seq_gen", sequenceName="brands_seq",schema="live",allocationSize=1) @Column(name = "id") private Integer id; ... } @Entity @Table(name="campaign_group", schema="campaign") public class CampaignGroup implements Serializable { @Id @GeneratedValue(strategy=GenerationType.SEQUENCE, generator="campaign_group_seq_gen") @SequenceGenerator(name="campaign_group_seq_gen", sequenceName="campaign_group_seq",schema="campaign",allocationSize=1) @Column(name = "id") protected Long id; @ManyToOne(fetch = FetchType.LAZY, cascade={CascadeType.MERGE}) @JoinColumn(name="brand_id") protected Brand brand; </code></pre> <p>At start up the tables are created correctly and they are in the database but then I get this error:</p> <pre><code>DEBUG org.hibernate.tool.hbm2ddl.SchemaExport [] - alter table campaign.campaign_group add constraint FKB1854E905348D509 foreign key (brand_id) references live.brands ERROR org.hibernate.tool.hbm2ddl.SchemaExport [] - Unsuccessful: alter table campaign.campaign_group add constraint FKB1854E905348D509 foreign key (brand_id) references live.brands ERROR org.hibernate.tool.hbm2ddl.SchemaExport [] - ORA-00942: table or view does not exist </code></pre> <p>I've created all users/schema with the <code>SQL: CREATE USER</code> campaign <code>IDENTIFIED</code> BY <code>dsa123 QUOTA UNLIMITED</code> ON system;</p> <p>I'm using the SYSTEM user to create the database through the application and hbm2ddl.</p> <p>Anyone knows why this fails? SYSTEM seems to have all provileges on the other schemas too, perhaps I'm missing something in the annotation for Oracle that Postgres does not require?</p>
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