There could be a number of reasons for this error. For example, if you are using an Azure SQL database, to change databases, you must directly connect to the database, using the **USE** statement does not switch between databases. Since you updated the connection details and credentials of the data source, the error could also be related to the schema or credentials of the underlying data source.
You can try to create the base view again from the updated data source and test if the view executes.
In case you need any further assistance and If you have a valid support account, we recommend opening a support case on the [Denodo Support Site](https://support.denodo.com/).
Hope this helps!