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ORA-01548 active rollback segments error

My database had the following error:

ORA-01548 active rollback segments '_SYSSMU1$' found, terminate dropping tablespace

Through the answer that I got on MetaLink I decided to drop my database and create it again. The users are normally accessing the application but the export isn't okay.

 
ORA-29516: Aurora Assertion failure: Assertion failure at joncomp.c:127
jtc_active_clint_init_ncomp_slots(java/lang/Object, 0) returned 0

What can I do?


The problem with the ORA-01548 error is that you are trying to drop an UNDO tablespace that a transaction is currently using. You will have to wait until the transaction completes before you can drop this tablespace. Once the transaction has committed or rolled back, you can drop that tablespace without error.

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