In the sql environment, a is a logical group of database objects – such as tables and indexes – that are related to each other and which usually belong to a single user or application.

Schema

Explanation: A schema is the group that contains objects of databases with views, index, triggers, tables etc features. The specific user can access schema who persist a certain username.The user is considered as the owner of the database and its element.

Schema is usually bound to have only single database.There are some schema that are already present in the system as the in-built schema .E.g.- sys, guest etc.

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