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Showing posts with label sql. Show all posts
Showing posts with label sql. Show all posts
Thursday, July 22, 2021

Concept of "NoSQL Databases" in Big Data Analytics with 7 sample conceptual questions and answers | Infographic Note with explanation

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Wednesday, March 17, 2021

Cartesian Product Operation in SQL and RDBMS - concept discussion with example

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   Cartesian Product Operation   * The Cartesian product operation is denoted by a cross ( X ) which allows us to combine information fr...

Union Operation in RDBMS - Fundamental Relational Algebra Concept

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              Union Operation - RDBMS         Fundamental Relational Algebra Concept ======================================= * Scenari...
Monday, March 15, 2021

Self Variable in _init_ constructor

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  Self Variable in _ init_ constructor * 'Self' is a default variable that contains the memory address of the instance of the cu...
Friday, March 12, 2021

Introductory Concept of Abstraction in Python

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  Introductory Concept of Abstraction in Python * In languages like Java , there are several keywords like private , public and protecte...
Wednesday, March 3, 2021

Cardinality Ratio concept in "Database and Management Systems" with explanatory figurative example

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  Cardinality Ratio concept in DBMS   Cardinality Ratio It is the number of relationship instance that an entity can participate in . If o...
Tuesday, March 2, 2021

Basic Domain Types Supported by SQL

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SQL - Structured Query Language ( a basic course overview & revision on the paradigms and features of SQL as a Relational Database Management Language )

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        SQL - Structured Query Language                                                      ( a basic overview )   ·            The b...