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The document provides an overview of database systems, including definitions of data and databases, the role of Database Management Systems (DBMS), and the differences between data and information. It discusses the relational model, key concepts such as relations, tuples, and attributes, as well as the Entity-Relationship (ER) model for visualizing data relationships. Additionally, it outlines the advantages and disadvantages of DBMS, along with its characteristics and various roles within a database enviro

Author

dev soni

Language

EN