1- Data, DataBase, DataModel Types & Infrastructure
What is data? Data is a collection of a distinct small unit of information. It can be used in a variety of forms like text, numbers, media, bytes, etc. it can be stored in pieces of paper or electronic memory, etc. In computing, Data is information that can be translated into a form for efficient movement and processing. Data is interchangeable What is Database? A database is an organized collection of data, So that it can be easily accessed,managed and maintained. For example, a company database may include tables for products, employees, and financial records. Types Of Data Models The three primary types of data models are conceptual, logical, and physical . Think of them as a progression from an abstract layout to a detailed mapping of the database setup and final form: Types of Data Models --> Conceptual Data Model Conceptual data models are the most simple and abstract . Little annotation or data use occurs in this model, but the overall layout an...