does it means that create another database,and then link the tables, queries, etc. to the new database?
Interface meaning what the users see when they work in the database, i.e. Forms, Reports, etc. It is real bad VooDoo to allow all users access to your raw data(Tables). If they tinker around not knowing what they are doing, they can wipe out data. OR you can split the database with the Database Splitter and create FrontEnd/BackEnd scenario. But be wise, DO NOT ALLOW ACCESS TO RAW DATA BY EVERYONE.
the aim is store once, not store multiple times
Remember... Optimize 'til you die!
Progaming environment: Access based on my own environment: DAO3.6/A97/A2000/A2003/A2007/A2010 VB based on my own environment: vb6 sp5 ASP based on my own environment: 5.6 VB-NET based on my own environment started 2007 SQL-2005 based on my own environment started 2008 MYLE YOUR PASSWORD IS JUST LIKE YOUR TOOTHBRUSH DON'T SHARE IT.