DROPING A TABLESPACE

Question

Dear all,
can you please tell me how to drop a tablespace which has materialized views.I tried the following
drop tablespace portal including contents and datafiles;
but i get the following error message
SQL> drop tablespace portal including contents and datafiles;
drop tablespace portal including contents and datafiles
ERROR at line 1:
ORA-23515: materialized views and/or their indices exist in the tablespace
there are about 200 indices in the tablespace dropping the all one by one is very cumbersome.Is there any other way i can do this and drop the tablespace.Thanks in advance.
Regards
Prasanna.N

Answer 1

Hey!!!
SQL> alter tablespace <tbname> offline;
Tablespace altered
SQL> drop tablespace <tbname> including contents;
drop tablespace BLUH including contents
ORA-23515: materialized views and/or their indices exist in the tablespace
Try the below script...
SQL> select ‘drop materialized view ‘||owner||’.'||name||’ PRESERVE TABLE;’ from dba_registered_snapshots where name in (select table_name from dba_tables where tablespace_name = ‘tbname’);
drop materialized view ABC.CB_BLUH_DM_DATE_VW PRESERVE TABLE;
drop materialized view ABC.CB_BLUH_ROLE_VW PRESERVE TABLE;
drop materialized view ABC.CB_BLUH_DM_INTER_VW PRESERVE TABLE;
[After MVs were dropped]
SQL> drop tablespace <tbname> including contents
ORA-02449: unique/primary keys in table referenced by foreign keys
SQL> drop tablespace tbname including contents and datafiles CASCADE CONSTRAINTS;
Tablespace dropped
Regards,
Hari
Edited by: user8658506 on Oct 19, 2010 3:15 AM