I have 2 columns in a table and both form a unique value together. How do I set up validation properties so that 2 entries in both columns cannot be identical?
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Windows XP 
Access 2007
I have 2 columns in a table and both form a unique value together. How do I set up validation properties so that 2 entries in both columns cannot be identical?
Administrator
Windows 7 64bit Access 2010 32bit
This link should help here: http://www.btabdevelopment.com/ts/mfi
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