Error on "purge recyclebin"

Question

Hi,
I am using Oracle 10g (10.2.0.2.0).
I am having problems purging the recyclebin, when connected as dbadmin.
When I tried to do a purge recyclebin, I was left with only 2 objects in the recyclebin, and got an error -
SQL> purge recyclebin;
purge recyclebin
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 1
ORA-02449: unique/primary keys in table referenced by foreign keys
The objects in the database are:
SQL> select object_name, original_name, type, can_undrop, can_purge, droptime, ts_name
from recyclebin;
object_name original_name type can_undrop can_purge droptime ts_name
=========================================================================================
SYS_IL0000011599C00063$$     SYS_IL0000011599C00063$$     LOB INDEX     NO     NO     2010-10-08:09:13:34 small_tables
SYS_LOB0000011599C00063$$     SYS_LOB0000011599C00063$$     LOB     NO     NO     2010-10-08:09:13:34 small_tables
If I try connecting as sysdba, and purging the dba_recyclebin, it says purged -
sqlplus as sysdba
SQL> purge dba_recyclebin;
DBA Recyclebin purged.
But, I still see the objects in the recyclebin. Doing a purge tablespace gives me the same error -
SQL> purge tablespace small_tables;
purge tablespace small_tables
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 1
ORA-02449: unique/primary keys in table referenced by foreign keys
Any help would be greatly appreciated.
Thanks.

Answer 1

Use this to find the dependents,
select owner, constraint_name,table_name,index_owner,index_name
from dba_constraints
where (index_owner,index_name) in (select owner,index_name from dba_indexes
where tablespace_name='YOUR_TABLESPACE IN UPPER CASE');
Now disable the referenced constraints and purge the tablespace.
SQL> ALTER TABLE table_name DISABLE CONSTRAINT constraint_name;
Thanks