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What is ER model in DBMS?
What is a physical data model diagram?
What is star schema?
2 days ago · The Entity-Relationship (ER) Model is one of the primary components of Database Management Systems and is very important for designing the logical structure of databases. It helps define data, and the relationship between the data entities and it makes the system easier to visualize.
5 days ago · In this tutorial, we will understand the concept of Data Modeling with its types. We will also see the 5 different tools and techniques for data modeling, i.e. Hierarchical, Network, Object Oriented, Entity Relationship, and Relational.
5 days ago · It is called a star schema because the entity-relationship diagram between dimensions and fact tables resembles a star where one fact table is connected to multiple dimensions. The center of the star schema consists of a large fact table and it points towards the dimension tables.
5 days ago · What are the three building blocks of the ER model? Entity types, attribute types, and relationship types. What is the entity type of the ER model? Represents a business concept with an unambiguous meaning to a particular set of users.
5 days ago · Study with Quizlet and memorize flashcards containing terms like What is a ER diagram?, What is an entity?, How are entities depicted? and more.
5 days ago · Conceptual data model is created by gathering business requirements from various sources like business documents, discussion with functional teams, business analysts, smart management experts and end users who do the reporting on the database.
3 days ago · What do you mean by data normalization? Data normalization is the process of organizing data in a database to reduce redundancy and improve data integrity. It involves structuring data into tables and defining relationships to ensure consistency and efficient data management.
