As everybody working with Oracle knows, it an empty Varchar2 will result in a NULL value when put into a Varchar2 column.
I (and a coworker as well) thought we had read about a parameter that could be set in the database to change that behavior and actually differentiate between null values and empty Strings.
Is there such a parameter in the new versions? (We think since 10g)
Or is there a parameter which we might confuse with it with?