What is the three schema architecture?

Question

Three-schema architecture is an idea in relational database design that breaks a database down into three different categories according to its use and structure, and to the roles played by system administrators, designers and end users. 8 июн. 2017 г.

What are the 3 levels in 3 schema architecture?

The three levels present in this architecture are Physical level, Conceptual level and External level.

What are the three database schema?

There are mainly three levels of data abstraction: Internal Level: Actual PHYSICAL storage structure and access paths. Conceptual or Logical Level: Structure and constraints for the entire database. External or View level: Describes various user views.

Expert · Answer

The three levels present in this architecture are Physical level, Conceptual level and External level.

Expert · Answer

There are mainly three levels of data abstraction: Internal Level: Actual PHYSICAL storage structure and access paths. Conceptual or Logical Level: Structure and constraints for the entire database. External or View level: Describes various user views.

What is the three schema architecture?

What are the 3 levels in 3 schema architecture?

What are the three database schema?

Related Questions