ORA-01422 while drop table (even DUAL looks fine)

Today on the OTN forum a question was comming up about an ORA-01422, in combination of a table drop.

SQL> drop table xxx
2 /
drop table xxx
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 1
ORA-01422: exact fetch returns more than requested number of rows

Due to the fact that this looked a bit weird, I did a small test on my database. The following test case I did: Continue reading