Entity framework core 8 return double quote in Oracle Query

Hi All, 

My project using .net core 8, when i debug code, always get error ".net core ORA-00942: table or view does not exist"   i would like to show data using this query:

var data = _db.employee.ToQueryString();

when i debug, the data variable show this: 

SELECT "e"."id", "e"."empolyee_name", "e"."employee_code"
FROM "employee" "e"

My Question:
how to remove double quote " in EF query to this?  SELECT e . id , e . empolyee_name, e . employee_code FROM employee e.

i assume the error table or view does not exist because my EF query returning double quote "".

how to solve it?

thanks & regards.