Difference between Identity Column and Sequence Object in SQL Server

Published: 01 January 1970
on channel: Tech Yatra(Nishant Gupta)

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In this video, we'll be discussing the difference between identity columns and sequence objects in SQL Server.

Identity columns are a type of column in SQL Server that automatically generates a unique value for each row inserted into a table. This can be useful when you need a unique identifier for each row, such as in a primary key column.

Sequence objects, on the other hand, are a way to generate a sequence of numbers that can be used in various ways, such as generating unique values for primary key columns or generating order numbers for orders. Unlike identity columns, sequence objects are not tied to a specific table, and can be used across multiple tables and even multiple databases.

While both identity columns and sequence objects can be used to generate unique values, they have some important differences that may make one more suitable for your particular use case. In this video, we'll explore those differences in more detail and provide examples of when you might want to use one over the other.

So, whether you're a beginner or an experienced SQL Server user, this video will provide valuable insights into the differences between identity columns and sequence objects and help you choose the right tool for your needs.

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