SQL Mastery: From Beginner to Advanced (Complete Course)

What you will learn:

Design a database for a popular messaging app
Master SQL queries to manipulate data effectively
Learn how to interact with a database server from setup to administration
Understand DDL and DML commands for database design and data manipulation
Develop practical SQL skills through hands-on exercises and real-world examples

Description

Unlock the power of SQL with this comprehensive course, designed for beginners and experienced users alike. Discover the fundamentals of database design and learn how to write powerful SQL queries.

This practical course goes beyond theory. You'll build a real-world database for a popular messaging app, applying SQL commands to solve practical problems. From setting up your development environment to mastering DDL and DML commands, you'll gain the skills needed to confidently navigate the world of databases.

Who is this course for?

Beginners: Get a solid foundation in SQL, perfect for anyone new to databases.
Students: Develop in-demand skills and build a strong portfolio with practical database design and SQL experience.
IT Professionals: Enhance your existing SQL knowledge, fill in knowledge gaps, and gain valuable hands-on experience.

What you'll learn:

Design Databases: Master DDL commands to create and structure your own databases.
Write Powerful SQL Queries: Learn how to retrieve, update, and manipulate data using a variety of SQL query types.
Interact with Database Servers: Gain practical skills in working with MySQL servers, from setup to managing data.

Try it out! Udemy offers a 30-day money-back guarantee, so you can explore the course risk-free.

Join the world of database professionals and unlock your SQL potential!

Curriculum

Setting Up Your Environment

Start your journey by configuring your development environment. You'll learn how to install and configure MySQL server, navigate the command line, and work with graphical IDEs like Workbench and DBeaver. You'll also delve into the basics of interacting with the database server, covering crucial commands and concepts.

Database Design: Mastering DDL Commands

This section dives deep into database design using DDL (Data Definition Language) commands. Explore key concepts like primary keys, data types, naming conventions, and indexes. You'll gain hands-on experience with foreign keys, including how to implement them and handle various scenarios. This section also covers the intricacies of ALTER TABLE command and the different types of relationships between tables, ensuring you have a strong understanding of database structure.

Data Manipulation: DML Commands and CRUD Operations

Become proficient in DML (Data Manipulation Language) commands. This section focuses on CRUD (Create, Read, Update, Delete) operations, mastering commands like INSERT, SELECT, UPDATE, and DELETE. You'll learn how to insert data into your database, retrieve information using various SELECT queries, update existing records, and delete data when necessary. You'll also explore advanced techniques like data generation using online services and importing/exporting data seamlessly.

Knowledge Check

Put your knowledge to the test! This section includes a comprehensive set of homework questions to solidify your understanding of the concepts covered so far.

Fundamentals of SELECT Queries

Master the basics of SELECT queries. Learn about filtering data using WHERE and LIKE conditions, sorting data with ORDER BY, using aggregate functions (COUNT, MIN, MAX, AVG, SUM), and grouping data with GROUP BY. This section also covers filtering within groups using HAVING, understanding NULL values, and implementing pagination with LIMIT and OFFSET. You'll also explore conditional statements like IF and CASE for more complex query scenarios.

Advanced SELECT Queries

This section covers advanced query techniques. Learn about nested queries (subqueries), different types of joins (CROSS JOIN, INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL OUTER JOIN), and comparing their effectiveness. You'll also delve into the power of UNION for combining query results, explore window functions, and discover the benefits of common table expressions (CTE) and recursive CTEs for advanced data manipulation.

Expanding Your SQL Toolkit

This section explores some of the powerful features of SQL. Discover full-text search functionality, create views for simplified data access, and learn how to build stored procedures and user-defined functions. You'll also explore using variables for increased flexibility, and delve into the world of triggers for automating database tasks.

Mastering Transactions

Understand the importance of transactions in maintaining data integrity. Explore the concept of transaction isolation levels, how to handle exceptions and errors gracefully, and learn about how database locks work. You'll also understand the concept of deadlocks and learn to avoid them.

Controlling Access: Users and Roles

This section covers how to manage user accounts and roles within your database. You'll learn how to create, modify, and delete users, assign roles, and control user permissions for enhanced database security.

Optimizing SQL Queries

This section covers strategies for writing efficient SQL queries. Learn how to optimize queries by minimizing JOIN operations, understanding denormalization, and configuring your database server for better performance. You'll also explore tools for analyzing query performance and identifying potential bottlenecks, including using the EXPLAIN command and visualizing query execution plans.

Additional Topics

This section covers a range of additional SQL concepts. You'll learn how to work with database logs, understand the nuances of using loops, and explore the capabilities of cursors for iterating through data. You'll also be introduced to the threat of SQL injection vulnerabilities and how to protect your database from this attack.

Course Completion

Finalize your learning with a comprehensive final test to gauge your mastery of the course material. You'll also receive a summary of the course and insights on how to further expand your SQL skills.

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