I'm trying to query in the Server Code a Database collection the records that contain an undefined values in a field (date type).
According MongoDB and Appery documentation, I should use the $exists syntax
My sintax is as follows:
I'm trying to query in the Server Code a Database collection the records that contain an undefined values in a field (date type).
According MongoDB and Appery documentation, I should use the $exists syntax
My sintax is as follows: