文档解释
ORA-28396: rekey of enc$ dictionary table failed
Cause: One or more master keys required for the rekey operation could not be found in the wallet. Either incorrect master key identifiers were inserted into the enc$ dictionary table or the wallet containing the referenced master keys were improperly modified or deleted.
Action: Restore the most recent copy of the wallet and try again.
ORA-28396: rekey of enc$ dictionary table failed：
官方解释
常见案例
一般处理方法及步骤
1.检查表空间中的参数是否正确。
2.确认更改表空间的操作活动，以及为什么未能正确完成。
3.重新创建/更新字典表enc$，执行：
alter tablespace
