Relocating objects into new tablespace?

Question

I was looking for an easy way to relocate all objects from one table space to another table space? Is there a utility or any way to have all objects in one table space move to a new tablespace with out have to either move or rebuild each object one at a time.
We have a tablespace that is 50 gig but is only 2% utilized so I am looking to shrink the overall db size by relocating the objects, and the dropping the 50 gig table space.
I am trying to avoid extracting all of the ddl for all of the objects as well as the ddl to rebuild all of the indexes as there are over 200 objects that need relocating?
Thanks.

Answer 1

HI..
To relocate the tables into another tablespace you can spool the output of below query and run it.
select 'alter table '||owner||'.'||table_name||' move tablespace new_tbs_name parallel N;' from dba_tables where tablespace_name='XXX';
Note:- N = cpu_count-1
parallel --> to fasten the activity
After its done,
Rebuild the indexes of these tables:-
select 'alter index '||owner||'.'||index_name||' rebuild parallel N;' from dba_indexes where table_name in (select table_name from dba_tables where tablespace_name='XXX');
Then change the degree back:--
select 'alter table '||owner||'.'||table_name||' parallel (degree 1);' from dba_tables where degree > 1;
select 'alter index '||owner||'.'||index_name||' parallel (degree 1);' from dba_indexes where degree > 1;
If on 10g
select 'alter table '||owner||'.'||table_name||' parallel (degree 1);' from dba_tables where degree > '1';
select 'alter index '||owner||'.'||index_name||' parallel (degree 1);' from dba_indexes where degree > '1';
HTH
Anand