On Sat, 12 Jan 2019, Ricardo Martin Gomez wrote:
Hi, one question. Do you put explicit "NULL" in the column value? Other option is. You have to delete the column "next_contact" in your INSERT clause. So, if the column has a default value, this value Will be inserted. Else Null value will be inserted.
Ricardo, I thought of using an explicit null and David confirmed that to be the solution. Also, he answered my question that having a default and check constraint are not needed. Thanks, Rich