Hi
Default db scripts are saved under<uim>/nis/sql/<db> folder
you can run scripts:
<db>_nis_base_create.sql
<db>_slm_create.sql
<db>_dataengine_create.sql
<db>_nis_installer_create.sql
<db>_nis_account_create.sql
<db>_discovery_server_create.sql
<db>_nis_server_create.sql
<db>_ace_create.sql
<db>_webservice_create.sql
run script
<db>-nis-create.sql
under folder <uim>/probes/service/nas.
You can also extract schema from working UIM database and remove ddl statements for RN/HN/DN/BN_* tables.
Hope this helps