Not sure how similar 2008 is to 2005, but I am using SQL 2008 and I'm trying to create a unique constraint between 3 columns....
Problem is, I'm used to SQL 2000 where you can just select the columns from a dropdown...
In SQL 2008, I need to write an "expression"
What is the correct expression if the 3 columns are for example: eyeColor, hairColor, skinColor ???
Thanks for any help with this!