How do I set up a MySQL db to allow duplicate entries?
What do you mean? You can enter the same information on row after row of data with the same data if you really want to as long as there is no primary key or unique field in the table, suppose you gave an example of your data structure for a table and just what it is you really want to do.
I was wondering why you might want to do this?
My struggle is always to amke sure that there are no duplicate entries, not TRYing to make some!!