I want to have my table to automatically returns current record number.
What functions should I input in default value of this field (indicated in blue arrow) in order to automatically generates number based on their current record?
For example, in this table, it should be filled with number "1". If I create a new record, then it also automatically filled with number "2" respectively.
For the picture http://i.stack.imgur.com/Bn4n5.png