I have deleted some data from the table TAB1.
In order to claim the space i am performing
alter table TAB1 enable row movement; > goes fine
alter table TAB1 shrink space; > ORA-10631: SHRINK clause should not be specified for this object
This is because there are function based indexes in the table. We can’t shrink a table with function based indexes. Any work around exists for this issue.
Dropping the Index was the most likely alternative: