Data Modelling | Database Management Systems

Data Modelling  is the process of organising data elements into entities and mapping them into real world objects . This defines how different entities will behave together and what will be the relationship among them. Database Management Systems are designed to store information and data for softwares . Before , implementation of the system the DBMS …

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Crow's Foot Notation

Crow’s Foot Notation is utilised to represent Cardinality & Modality .When we design a database management system , we set some basic rules and define a limit and relation between different entities . In other words , we decide in what capacity the entities will interact each other.  Cardinality & Modality are two concepts that …

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DBMS Relationships

DBMS Relationships are a fundamental & core principal which is used to make objects behave with each other. We use DBMS relationships to define how entities in DBMS relates to each other and to what extent they will communicate with each other. Recently , we talked about  ERD Terminologies and discussed about entities and attributes in detailed. …

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