how to do hibernate mapping for table or view without a primary key [duplicate]

Answer 1

I would do this only when you are reading data (not writing it). When you have a DB like oracle, you can have statements like

select DOKUMENT.*, ROWID from DOKUMENT

→ and thus, you can add this statement into the Hibernate mapping:

<id column="ROWID" type="string" />

subsequently, you define all other columns as

<property...

When you use the reverse engineering Wizard, you can

1. remove the composite-key tag,
2. search and replace key-property for property and
3. insert above line

Answer 2

Don't think Hibernate allows mapping a table without a primary key...think about how Hibernate would perform updates without a column that can uniquely identify a row.

I guess a work-around would be to use a composite key with all columns, but you are much better off adding a primary key.