[SQL Server] Unique Constraint in SQL Server -- Part 1
- In this article I would like to explain about "Unique
Constraints". Constraints are one of the key factors in designing a
table. Before I explain what is the use of constraints lets take one
real world example. When you are opening a bank account, there is a bank
rule that says, you can not have more than one account with in same
branch or location. This is a business rule.
To implement this kind of rule either we can use UNIQUE Constraint or
Primary Key Constraint. This article will implement this business rule
using UNIQUE KEY constraint.
Check out the Unique Constraint in SQL Server -- Part 1
for complete information.
Thanks -- Vijaya Kadiyala
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