text: alter table    r_wy
  add
     constraint  r_wy_fk1
     foreign key (validation)
     references  hdb_validation(validation);
  
  alter table    r_wy
  add
     constraint  r_wy_fk2
     foreign key (site_datatype_id)
  references  hdb_site_datatype(site_datatype_id);
  
  alter table    r_wy
  add
     constraint  r_wy_fk3
     foreign key (source_id)
     references  hdb_data_source(source_id);
  
  alter table    r_wy
  add
     constraint  r_wy_fk4
     foreign key (overwrite_flag)
     references  hdb_overwrite_flag(overwrite_flag);
  
  alter table    r_wy
  add
     constraint  r_wy_fk5
     foreign key (method_id)
     references  hdb_method(method_id);
  