We need to override the base import to add a validation code that filters based on date field.

we have written a store procedure to be executed when import method is called.

Is there any other method to filter import based on date time.We have around ten thousand records imported regularly. Of these records only thirty or so records are new.Rest of the records are duplicates t.We added a duplicate delete query that remove these duplicates on database.We need a better solution as these records importing and deletion takes considerable amount of time to process.