Lec-6: Three Schema Architecture | Three Level of Abstraction | Database Management System
In this video, 3 schema architecture is explained with examples. Complete discussion on Physical layer, Conceptual layer and View level with examples.
In this video, 3 schema architecture is explained with examples. Complete discussion on Physical layer, Conceptual layer and View level with examples.
Super Key in DBMS
Databases: Enhanced ERD - Supertypes and Subtypes
5th Normal Form (5NF) | Join Dependency | Database Normalization
Basic Operators in Relational Algebra - GeeksforGeeks
56. ALTER TABLE for adding one column without constraints in SQL (Hindi)