Coalesce
Global Index
Partitioned Index
Rebuild
Global Index & Partitioned Index
Global Index
alter index [index_owner].[index_name] coalesce;
Partitioned Index
alter index [index_owner].[index_name] modify partition [partition_name] coalesce;
Rebuild
Global Index & Partitioned Index
alter index [index_owner].[index_name] rebuild partition [partition_name];