Python vs R: Know The Difference
Python vs R: Know The Difference The world is moving towards the next technological wonder with Data Science and Artificial Intelligence leading the way. If you’re aware of this world, then you know about the two programming languages that are always a matter of interest and debate: Python and R. Python An interpreted, high-level object-oriented programming language with simple, readable syntax. Python comes with built-in data structures and powerful libraries for data science like Scikit-learn, TensorFlow, and Pandas. Advantages Versatility: Supports multiple programming paradigms Open Source: Free with active community support Libraries: Extensive collection for data science Productivity: Great integration capabilities Embeddable: Can integrate with other languages Disadvantages Speed: Slower than compiled languages Mobile: Weak for Android/iOS development Memory: High RAM consumption Database: Underdeveloped access layers Threading: Limited by Global Interpreter Lock R A programming language for statistical computing and graphics. R comes with a wide range of statistical techniques
MySQL: Entity-Relationship Model
Entity-Relationship model or E R model is used to create a relationship between different attributes or entities. It describes the structure of the database with the help of the ER Diagram or Entity Relationship Diagram. ER model creates a simple design view of the data that makes the data easier to understand. Example: Here, we have a database COMPANY, and in this database, EMPLOYEE is the entity (table). The employee entity contains several attributes like EMP_ID, EMP_NAME, EMP_ADDRESS, EMP_DATE_OF_BIRTH, EMP_AGE, and EMP_CONTACT. ER Model Components 1. Entity The entity in DBMS can be a real-world object having conceptual reality and existence. Example: In a COMPANY database, the entity type is EMPLOYEE. Here employees are real-world persons that have some existence. Entity Types Strong Entity Entities that don’t depend on other entities. Contains a primary key. Represented by a single rectangular box. Example: EMPLOYEE with EMP_ID as primary key. Weak Entity