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Showing posts with label dbms. Show all posts
Showing posts with label dbms. Show all posts
Tuesday, March 30, 2021

Working with Data Objects in R

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                                Working with Data Objects in R * Data Objects are the fundamental items that one can work with in R langua...

Set-Difference Operations in RDBMS - an explanatory blog

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                 Set-Difference Operations in RDBMS   * The Set-Difference operation , denoted by "-" allows us to find the tu...
Wednesday, March 17, 2021

Graphic Representation of all the involved Processes in Data Processing in Data Analytics and Data Science

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Monday, March 15, 2021

Types of Variables in Python ( related to Classes and Objects in OOPS )

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  Types of Variables in Python   * The variables which are written inside a class are of primarily two types : 1) Instance Variables ...
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...
Friday, February 26, 2021

Keys of a Relational Database System ( detailed description with example on Primary Key Foreign Key , Candidate Key , Super Key )

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  ·          One must have a way to specify how the tuples within a given relational table are distinguished from one another which is usual...