Oracle Database cannot retrieve tables

[mail2julian]

hi,
i was trying to connect oracle database to jupyterlab using this sql extension.
The connection was successful, i was able to run custom SQL query from the extensions.
It also showed the tables in the database, but when i tried to open a table it gives me this error:

(cx_Oracle.DatabaseError) ORA-00936: missing expression
[SQL: SELECT FROM DUAL
WHERE ROWNUM <= :param_1]
[parameters: {'param_1': 1000}]
(Background on this error at: http://sqlalche.me/e/4xp6)

But if i try to get the same table data from the Custom SQL query it shows the data.
this error only occurs in Oracle DB, all the other supported Databases are working fine.

pls help to resolve error.

thank you.

[ckiefer]

I have exactly the same issue. Any comments are highly appreciated.