Yes, better describe your situation. 'Joe Smith, 1/1/14' is not a duplicate of 'Joe Smith 1/3/14'.
Provide sample data from your table (include field and table names) and also provide what data should result from that sample data once you've done the process you want done. Use this format for posting data:
TableNameHere
Field1Name, Field2Name, Field3Name
David, 1/2/2009, 71
Sally, 3/8/2007, 44
Also, what's the ultimate goal of this thing? Generally, you don't move data around, deleting and appending data. Usually, you aim to produce a SELECT query that will generate the ultimate results you want without using any action queries (i.e. UPDATE, MAKE TABLE, DELETE). So explain the big picture.