Unique Constraint in SQL Server (dotnetvj.com)
submitted by
Kadiyalavj(580) 3 years, 1 month ago
In this post I would like to summarize the different articles on Unique Constraint in SQL Server.
Constraints are one of the key factors in designing a table. When you are opening a bank account, bank says that you can not have more than one account in the same branch or location. This is a business rule and this can be implemented using Unique Constraints.
Unique Constraints can be defined at the Column level or Table Level.
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