ORA-01552 cannot use system rollback segment for non-system tablespace "name" Cause An attempt was made to use the SYSTEM rollback segment for operations involving a non-system tablespace.
Action Create one or more rollback segments and then use ALTER ROLLBACK SEGMENT 'name' online. It may be necessary to modify the initialization parameter ROLLBACK_SEGMENTS to acquire one of the new private rollback segments. Before creating a rollback segment outside the SYSTEM tablespace, it is necessary to first create and activate a non-system rollback segment in the SYSTEM tablespace. Copyright (C) 1998, Oracle Corporation
Action Create one or more rollback segments and then use ALTER ROLLBACK SEGMENT 'name' online. It may be necessary to modify the initialization parameter ROLLBACK_SEGMENTS to acquire one of the new private rollback segments. Before creating a rollback segment outside the SYSTEM tablespace, it is necessary to first create and activate a non-system rollback segment in the SYSTEM tablespace. Copyright (C) 1998, Oracle Corporation
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你能不能说清楚一些，因为我对回滚段，不是太了解，麻烦你先帮我解决这个问题，之后我在学习!真的很谢谢您！
我在创建会滚段时，回报错rsb.dbf 不能用，我在dba studio 看到它是脱机
然后我把他联机，就回报错：需要媒体恢复。我该怎么做，请指导！