What is the difference between using constraints and rules in SQL , Preferably with SQL Server 2008 R2 any real time example and can display There is a lot of difference in this, but one of the most notable differences is that we can force the rules of datat, while the obstacles are only bound to the columns. This feature helps us to make our data-type with the help of rules and input is obtained accordingly. I have a good example, check the following link
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