Is it possible for a Grails Domain to have no 'id'?

Question

Is it possible to create a table that has no \'id\'? For example, this is my domain:

class SnbrActVector {

    int nid
    String term
    double weight

    st         


        

Answer 1

Yes in Oracle you can use ROWID for ID column.

class Document {
    String id

    static mapping = {
        table "DOCUMENTS"
        version false
        id column: 'ROWID'
    }

}