oracle无法查看数据字典，显示空白

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日志显示错误：[2024-07-04 17:44:57,920][MainThread:139986052224832][task_id:default][oracle.py:702][WARNING]- Oracle 语句执行报错，语句：SELECT table_name, comments FROM dba_tab_comments WHERE owner = :db_name，错误信息Traceback (most recent call last):
File "/data/glc/archery/sql/engines/oracle.py", line 684, in query
cursor.execute(sql, parameters or [])
cx_Oracle.DatabaseError: ORA-00942: table or view does not exist