SQL Course Description:
This SQL (Structured Query Language) course is designed to teach you the fundamentals of querying and managing relational databases. Whether you’re a beginner or looking to refresh your skills, this course will equip you with the necessary tools to work effectively with databases using SQL. You will gain hands-on experience with querying, updating, and manipulating data within relational databases, and learn how to structure efficient and optimized queries.
Key Learning Objectives:
- Understand the core concepts of databases and SQL syntax.
- Learn how to create, read, update, and delete (CRUD) data using SQL commands.
- Work with complex SQL queries, including JOINs, subqueries, and aggregate functions.
- Learn to manage database tables, indexes, and constraints.
- Master advanced SQL techniques for data retrieval and analysis.
- Get comfortable with data normalization and relational database design.
- Understand how to optimize queries for better performance.
Course Topics:
- Introduction to Databases and SQL
- What is SQL?
- Understanding relational databases and their components
- Basic SQL commands: SELECT, INSERT, UPDATE, DELETE
- Querying Data
- Filtering data with WHERE clauses
- Sorting data with ORDER BY
- Using SELECT DISTINCT and LIMIT
- Joining Tables
- INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL OUTER JOIN
- Using JOINs to combine data from multiple tables
- Aggregation and Grouping
- Aggregating data with COUNT, SUM, AVG, MIN, MAX
- Grouping data with GROUP BY and HAVING
- Using the GROUP BY with multiple columns
- Subqueries and Nested Queries
- Subqueries in SELECT, WHERE, and FROM clauses
- Correlated subqueries vs. non-correlated subqueries
- Modifying Data
- Inserting new records
- Updating and deleting records
- Data integrity and constraints
- Advanced SQL Topics
- SQL functions (String, Numeric, Date)
- Case expressions and conditional logic
- Optimizing queries with indexes and query execution plans
- Database Design and Normalization
- Understanding normalization (1NF, 2NF, 3NF)
- Designing tables and relationships
- Database Management and Security
- Creating and managing databases and tables
- Setting user privileges and roles
Who Should Take This Course:
- Beginners with no prior database or SQL experience.
- Developers or IT professionals looking to improve their database skills.
- Data analysts who want to enhance their ability to extract and manipulate data.
- Anyone interested in working with relational databases and data-driven applications.
By the end of the course, you’ll be proficient in writing SQL queries and working with relational databases, empowering you to analyze and manipulate data with ease.
