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DBMS-Relational Algebra

17 posts

Query Tree in Relational Algebra

Last Updated: 23 July 2025

A Query Tree is a data structure used for the internal representation of a query in RDBMS. It is also known as the Query Evaluation/Execution Tree. The leaf nodes of the q...read more

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DBMS-Relational Algebra

Number of Relations that are both Irreflexive and Antisymmetric on a Set

Last Updated: 23 July 2025

Given a positive integer N, the task is to find the number of relations that are irreflexive antisymmetric relations that can be formed over the given set of elements. Sin...read more

DBMS-Relational Algebra

Relational Query Evaluation | Set 2

Last Updated: 15 July 2025

Prerequisite - Relational Query Evaluation | Set 1Data is stored in disks. Disks are then manipulated using read and write methods. More number of manipulations, lesser nu...read more

DBMS-Relational Algebra

Relational Query Evaluation | Set 1

Last Updated: 15 July 2025

There is a need for conversion of relational query to algebraic expressions. This expression is operated on so that final output is received. The relational algebra operat...read more

DBMS-Relational Algebra

Clausal Form in Deductive Databases

Last Updated: 01 September 2021

In clausal form, the formula is made up of a number of clauses, where each clause is composed of a number of literals connected by OR logical connectives only.A formula ca...read more

DBMS-Relational Algebra

Difference between Selection and Projection in DBMS

Last Updated: 15 July 2025

Selection and projection are two major basic model operations that are used when processing queries in DBMS. Although both are associated with the operation of a database,...read more

DBMS-Relational Algebra

Cartesian Product Operation in Relational Algebra

Last Updated: 15 July 2025

Prerequisite –Relational AlgebraWe already are aware of the fact that relations are nothing but a set of tuples, and here we will have 2 sets of tuples.On applying CARTESI...read more

DBMS-Relational Algebra

Constraints on Relational Database Model

Last Updated: 12 July 2025

In modeling the design of the relational database we can put some restrictions like what values are allowed to be inserted in the relation, and what kind of modifications ...read more

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DBMS-Relational Model

DBMS-Relational Algebra

Set Theory Operations in Relational Algebra

Last Updated: 26 July 2025

Set theory operations in relational algebra are based on basic mathematical set operations. Unlike commands likeSELECT,PROJECT orRENAME(which work on a single table), thes...read more

DBMS-Relational Algebra

SELECT Operation in Relational Algebra

Last Updated: 12 July 2025

Prerequisite - Relational AlgebraSelect operation chooses the subset of tuples from the relation that satisfies the given condition mentioned in the syntax of selection. T...read more

DBMS-Relational Algebra

Difference between Relational Algebra and Relational Calculus

Last Updated: 11 July 2025

Relational Algebra and Relational Calculus are two preliminarily important topics in the study of DBMS. Both are standardized query languages used for querying databases b...read more

Difference Between

DBMS-Relational Model

DBMS-Relational Algebra

Difference between Primary key and Unique key

Last Updated: 11 July 2025

Keys play a crucial role in relational databases by ensuring data integrity and efficient access to records. Keys help to identify individual rows in a table prevent from ...read more

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Technical Scripter

Difference Between

DBMS-Relational Algebra

Row oriented vs Column oriented data stores in DBMS

Last Updated: 18 April 2026

Databases are essential for storing, managing, and retrieving data in modern applications. The performance and efficiency of a database system largely depend on how the da...read more

Difference Between

DBMS-Relational Algebra

How to Solve Relational Algebra Problems for GATE

Last Updated: 07 November 2024

Relational Algebra is fundamental or necessary for GATE computer science preparation. It is also an important section of the Database Management System (DBMS). Relational ...read more

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DBMS-Relational Algebra

Basic Operators in Relational Algebra

Last Updated: 24 April 2026

The Relational Model is a way of structuring data using relations, which are a collection of tuples that have the same attributes. Relational Algebra is a procedural query...read more

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DBMS-Relational Algebra

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