Purpose of Schema

Question

What is the purpose of schema? I am a BA like to be more technically knowledgeable.

Answer 1

A schema is a kind of organization unit to

• combine objects as one unit
• can have objects with same name in different schemas
• easier assignment of permissions

See https://learn.microsoft.com/en-us/sql/relational-databases/security/authentication-access/create-a-database-schema?view=sql-server-ver16

Answer 2

Hi @Jonathan Brotto

The most straightforward purpose of SQL schema is to create a namespace for database objects, which helps avoid name collisions. It allows multiple users of a given database to create their own tables (or other objects), without having to worry about the existence of similarly named objects possibly introduced by other users, like Sales.Orders and Feedback.Orders.

Also, Schema allows you to control access to groups of objects. For example, you can grant or deny permissions to the entire schema, simplifying security management efforts compared to individual objects.

For tasks like backup and restore, it is simplifier to manage and maintain database objects if they're in the same schema.

In summary, the schema in SQL Server helps to efficiently manage database objects, enhance security management, and prevent naming conflicts.

Best regards,

Cosmog

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