How to fix the Oracle error ORA-01546: tablespace contains active rollback segment ‘string’?

In this post, you’ll learn more about the Oracle ErrorORA-01546: tablespace contains active rollback segment ‘string’ with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-01546: tablespace contains active rollback segment ‘string’

Reason for the Error ORA-01546: tablespace contains active rollback segment ‘string’

Tried to make a tablespace that contains active rollback segment(s) offline or read-only

How to fix the Error ORA-01546: tablespace contains active rollback segment ‘string’ ?

You can fix this error in Oracle by following the below steps

Shutdown instances that use the active rollback segments in the tablespace and then make the tablespace offline or read-only