Oracle considers empty strings to be NULL while SQL Server does not - how is this best handled?

Question

I have to write a component that re-creates SQL Server tables (structure and data) in an Oracle database. This component also has to take new data entered into the Oracle d

Answer 1

NOT NULL is a database constraint used to stop putting invalid data into your database. This is not serving any purpose in your Oracle database and so I would not have it.

I think you should just continue to allow NULLS in any Oracle column that mirrors a SqlServer column that is known to contain empty strings.

If there is a logical difference in the SqlServer database between NULL and empty string, then you would need something extra to model this difference in Oracle.