More than one table found in namespace (, ) - SchemaExtractionException

Question

I have been facing this weird exception while trying to persist some values into a table using Hibernate in a Java application. However this exception occurs only for one parti

Answer 1

I also came across this issue. Here is my solution:

the error: https://gist.github.com/wencheng1994

I solve that. It mainly because the db account has a higher authority. I set the "hibernate.hbm2ddl.auto=update", So when hbm2ddl works, it tried to find all exists shcema I defied. But there is two schema exist the table with the same name. then the db account can find that. so it found "more than one table in the namespace"

All I need to do is to make the db account lower authority so that it can not find table in other schema. (one shcema relation one db account).

Answer 2

So after having the same issue, it turns out that I needed to update my OJDBC driver from ojdbc6 to ojdbc8. Hopefully this helps.

Answer 3

Another situation may be occurred except whatever dear RichB has been stated. in ORACLE every user has separate schema , Therefore probably there is tow tables with the same name in two different schemes then you should specify your default schema in persistence.xml with below property

<property name="hibernate.default_schema" value="username"/>

Answer 4

I have same issue with such configuration

@Entity
@Table(name = "NOTIFICATION")
public class Notification {
    ...
}

issue was resolved for me when I moved table name from @Table to @Entity

@Entity(name = "NOTIFICATION")
@Table
public class Notification {
    ...
}