resource busy and acquire with NOWAIT specified

ORA-00054:
resource busy and acquire with NOWAIT specified
Cause:
Resource interested is busy.
Action:
Retry if necessary.

Erro dado quando numa sessao c/ usuario agodba fiz insert sem commit e na outra, tbm com usuario agodba, dei truncate.
Teste: se eu der rollback na segunda sessao, aquela q dei truncate, nada acontece pq nao houve manip de dados nessa sessao.
Se eu der rollback ou commit, o truncate na outra sessao executa.


SQL> delete from ag22_mvt;
0 rows deleted.
SQL> truncate table ag22_mvt;truncate table ag22_mvt *ERROR at line 1:ORA-00054: resource busy and acquire with NOWAIT specified