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What's the difference between Pimary key and altnerative key ? Under what situtation should I need to define an alternative key ?<br />
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Thanks<br />

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What's the difference between Pimary key and altnerative key ? Under what situtation should I need to define an alternative key ?

Thanks


Different between Pimary key and Alternative Key

Microsoft SQL Server is a suite of relational database management system (RDBMS) products providing multi-user database access functionality.SQL Server is available in multiple versions, typically identified by release year, and versions are subdivided into editions to distinguish between product functionality. Component services include integration (SSIS), reporting (SSRS), analysis (SSAS), data quality, master data, T-SQL and performance tuning.