
Explore how database management systems and databases power apps. They handle vast data—from banking and telecom to social media—covering traditional textual and numeric data, multimedia, gis, and big data systems.
Explore core terms in database design, including entities, attributes, relationships, and constraints, and distinguish simple, composite, single valued, multi valued, derived, null, and complex attributes within the entity relationship model.
Explains cardinality ratio and participation constraints in binary relationships, including total and partial participation, existence dependency, and structural constraints; distinguishes strong and weak entity types, owner entities, and relationship attributes.
Information is not useful if not organized. In database, data is organized in a way that people find it meaningful and useful. Database Management System (DBMS) is used to input, sort, organize and store data.
Database Management System (DBMS) is a Software for data storage & retrieval, for creating user interface (forms), reports, and for administering a DB system (security, access, etc.). An implementation of a DBMS product to support various information needs in a company includes one or more databases, logic (business rules), backend code and user interface.
An information system that is built from “applying” a DBMS or a database to a specific domain, supports specific information needs.