Typical Index Maintenance Tasks( 9i/10g)

--1 Move index from one tablespace to another
alter index &OWNER.&INDEX_NAME rebuild tablespace &NEW_TS_NAME
;

--2 Moving index partition from one tablespace to another
alter index &OWNER.&INDEX_NAME
rebuild partition &IND_PART_NAME tablespace &NEW_TS_NAME
;

--3 Moving all index subpartitions from one tablespace to anotheralter index &OWNER.&INDEX_NAME
rebuild subpartition &IND_SUBPART_NAME tablespace &NEW_TS_NAME
;

--4 Unusable indexesselect 'alter index '||owner||'.'||index_name||' rebuild;'
from dba_indexes where status='UNUSABLE';

--5 Unusable index partitionsselect 'alter index '||index_owner||'.'||index_name||
' rebuild partition '||partition_name||';' sql
from dba_ind_partitions where status='UNUSABLE';

--6 Unusable index subpartitionsselect 'alter index '||index_owner||'.'||index_name||
' rebuild subpartition '||subpartition_name||';' sql
from dba_ind_subpartitions where status='UNUSABLE';

--7 All things togetherselect 'alter index '||owner||'.'||index_name||' rebuild;' sql
from dba_indexes where status='UNUSABLE'
union all
select 'alter index '||index_owner||'.'||index_name||
' rebuild partition '||partition_name||';'
from dba_ind_partitions where status='UNUSABLE'
union all
select 'alter index '||index_owner||'.'||index_name||
' rebuild subpartition '||subpartition_name||';'
from dba_ind_subpartitions where status='UNUSABLE';