Week 2 Day 1 | Introduction to Databases & SQL Basics | Data Analytics Course
Автор: EDUSHARK TRAINING
Загружено: 2026-01-11
Просмотров: 4
Welcome to Week 2 – Day 1 of the Data Analytics Course by EDUSHARK TRAINING.
In this session, we introduce the fundamentals of databases and SQL, focusing on how data is stored, organized, and managed in real-world business systems.
Topics covered in this video:
What is a Database?
How data is stored and organized
Real-world example: E-commerce databases
Types of databases: Relational (SQL), NoSQL, Data Warehouses
Why relational databases are important for data analysts
Tables, rows, and columns
Primary keys and foreign keys
Table relationships
Entity-Relationship (ER) diagrams
Introduction to SQL
SQL command categories (DQL, DML, DDL, DCL)
SQL tools for practice (MySQL, PostgreSQL, SQLite, online platforms)
By the end of this session, you will understand how relational databases work and why SQL is an essential skill for data analysts. This lesson prepares you for hands-on SQL querying in upcoming videos.
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