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Tag Archives: DBMS-Relational Model

1. CouchDB : Apache CouchDB is an open-source document-oriented NoSQL database that uses multiple formats and protocols to store, transfer, and process its data, it… Read More
Prerequisites – Introduction of Relational Algebra in DBMS, Basic Operators in Relational Algebra  The RENAME operation is used to rename the output of a relation. … Read More
1. Relational Model: Relational model is a model for the management of the database. It is called so because the data is stored in the form… Read More
RDBMS stands for Relational Database Management System and it implements SQL. In the real-world scenario, people use the Relational Database Management System to collect information… Read More
A Data Model in Database Management System (DBMS), is the concept of tools that are developed to summarize the description of the database. It is… Read More
On modeling the design of the relational database we can put some restrictions like what values are allowed to be inserted in the relation, what… Read More
A quick review of the present need to store massive chunks of data relevant to multiple related or unrelated categories, reveals that databases must be… Read More
Both Relational Algebra and Relational Calculus are formal query languages.  Relational Algebra: Relational Algebra is a procedural language. In Relational Algebra, The order is specified… Read More
We strongly recommend to refer below posts as a prerequisite of this. DBMS | Relational Model Introduction and Codd Rules DBMS | Keys in Relational… Read More
  DBMS | Relational Model Introduction and Codd Rules  Different Types of Keys in Relational Model  Candidate Key: The minimal set of attributes that can… Read More
Terminology  Relational Model:  – * It was proposed by Dr. E.F.Codd. *It uses the concept of relations to represent each and every file. *Relations are Two-Dimensional Tables. * It… Read More
To understand this, you should have an idea about:  ER model  Relation model  After designing the ER diagram of system, we need to convert it… Read More
The relational Model was proposed by E.F. Codd to model data in the form of relations or tables. After designing the conceptual model of the… Read More

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