ORA-23515 materialized views and/or their indices exist in the tablespace cause and solution
The following is the ORA-23515 error message, you can learn the cause and solution of the Oracle database error.
ORA-23515 materialized views and/or their indices exist in the tablespace
Cause: An attempt was made to drop a tablespace which contains materialized views and/or their indices.
Solution: Drop the materialized views in this tablespace. Also, find indices belonging to materialized views in this tablespace and drop then. Then try dropping the tablespace.
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