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Sets a column to NULL.
Public Sub SetDBNull(ByVal colID As Integer)
public void SetDBNull(int colID)
The ID number of the column. The value must be in the range [0,ULDataReader.FieldCount-1]. The first column in the
cursor has an ID value of zero.
A SQL error occurred.
The data is not actually changed until you execute an ULTable.Insert or Update, and changes are not made permanent until committed.