Master Oracle SQL: From Basics to Advanced Techniques | Udemy

Expand Your SQL Toolkit – As you progress, you’ll delve into advanced query techniques such as using JOINS to combine data from multiple tables and GROUP BY to perform aggregate functions like counting, averaging, and summing data. Learn how to write powerful SQL queries that give you deeper insights into complex datasets.

In this course, you will:

1. Understand Data Fundamentals – Dive into the core concepts of data and databases. Learn what data is, how databases work, and their historical evolution to gain a solid foundation.
2. Master SQL Basics – Discover the history and benefits of SQL, and understand how it operates to interact with databases. This section covers essential SQL knowledge that will be vital throughout your data journey.
3. Learn Key Query Techniques – Get hands-on experience with the basics of SQL queries. Explore the SELECT statement, WHERE clause for filtering data, and ORDER BY for sorting results. These skills are crucial for effective data retrieval and analysis.
4. Explore SQL Data Types and NULL Values – Understand different SQL data types and learn how to handle NULL values in your queries, an important aspect of managing real-world data.
5. Gain Database Administration Skills – Learn to download, install, and set up Oracle Database using SQL Developer. Understand user and schema management, and how to connect to databases efficiently.
6. Understand Subqueries and Nested Queries – Enhance your SQL skills by mastering subqueries. You’ll learn how to write efficient queries that reference other queries, allowing you to extract more specific and useful data from your database.
7. Manipulate Data with DML (Data Manipulation Language) – Get comfortable with inserting, updating, and deleting data using INSERT, UPDATE, and DELETE commands. You’ll gain hands-on experience in modifying and maintaining data within databases, key skills for data analysts and database administrators alike.
8. Control Access with DDL (Data Definition Language) – Learn how to create and modify database structures using CREATE, ALTER, and DROP commands. You’ll also explore the GRANT and REVOKE commands to manage user permissions, a vital skill for maintaining database security and integrity.
9. Work with Functions and Expressions – Discover how to use built-in SQL functions for string manipulation, date handling, and performing mathematical operations. You’ll also learn about conditional expressions like CASE and how to integrate these tools into your queries to solve real-world data challenges.
10. Handle Transactions and Maintain Data Integrity – Learn how to manage database transactions using COMMIT, ROLLBACK, and SAVEPOINT to ensure data consistency and integrity, especially in multi-user environments. These concepts are essential for working with complex data systems and ensuring your data is accurate and reliable.
11. Master SQL with Real-World Scenarios – Throughout the course, you’ll work on practical exercises and real-world projects that simulate the challenges you’ll face in your data career. Whether it’s building reports, generating insights, or ensuring database security, this course provides the hands-on experience needed to apply SQL in real-world situations.

By the end of this course, you’ll be proficient in SQL and ready to tackle real-world data challenges with confidence. Whether you’re pursuing a career in data analytics, software development, or database administration, this course will give you the tools you need to succeed.