SQL Tutorials
SQL (Structured Query Language) is the standard language for managing relational databases. Learn how to query, insert, update, and manage data in databases using SQL.
What You'll Learn
In these tutorials, you'll learn:
- The basics of SQL and database queries
- Data manipulation (SELECT, INSERT, UPDATE, DELETE)
- Data definition (CREATE, ALTER, DROP)
- Filtering and sorting data with WHERE and ORDER BY
- Joining tables with different join types
- Aggregate functions (COUNT, SUM, AVG, MIN, MAX)
- Grouping data with GROUP BY and HAVING
- SQL constraints and data integrity
- Creating views, indexes, and managing database objects
Getting Started
If you're new to SQL, start with the SQL Introduction tutorial. It will teach you the fundamentals and get you ready to write your first SQL queries.
Tutorial List
SQL Introduction
Learn what SQL is and how to use it to interact with databases.
SQL Syntax
Learn the basic syntax and structure of SQL statements.
SELECT Statement
Learn how to retrieve data from database tables using SELECT.
WHERE Clause
Filter data using conditions with the WHERE clause.
ORDER BY
Sort query results in ascending or descending order.
INSERT INTO
Add new records to database tables.
UPDATE Statement
Modify existing records in database tables.
DELETE Statement
Remove records from database tables.
SQL Joins
Combine data from multiple tables using joins.
GROUP BY
Group data and use aggregate functions for summary reports.
CREATE TABLE
Create database tables with columns and data types.
SQL Constraints
Enforce data integrity with constraints like PRIMARY KEY and FOREIGN KEY.