How to check if spatial and multimedia is installed in the database

The following advice was given to me by Oracle Support services, to determine if either of these components are being used in the database:

 connect / as sysdba 

 set pagesize 10000 
 col owner format a12 
 col table_name format a35 
 col column_name format a25 
 col index_name format a25 

 -- Is Spatial being used? 

 select owner, index_name 
 from dba_indexes 
 where ityp_name = 'SPATIAL_INDEX'; 

 select owner, table_name, column_name 
 from dba_tab_columns 
 where data_type= 'SDO_GEOMETRY' 
 and owner != 'MDSYS'; 

If both of these queries return no rows, Spatial is not being used.

 -- Is Multimedia being used? 

 set serveroutput on; 
 @?/ord/im/admin/imremchk.sql 

If you're not using this component, you will get the message returned "Oracle Multimedia is not being used".