SQL (Structured Query Language) is used to communicate with the database. SQL is used to perform tasks such as updating or retrieving data in a database. Common database management systems using SQL - Oracle, Sybase, Microsoft SQL Server, Access, Ingres, etc. While most database systems use SQL, most also have their own add-ons that are usually only used on their system.
Sql
7 courses Added March 2026
PostgreSQL Fundamentals
You will learn the basics of SQL and work with databases using PostgreSQL as an example - and you will truly enjoy it! We will work with a real dataset...2 hours 5 minutes 18 seconds 5 / 5
Node, SQL, & PostgreSQL - Mastering Backend Web Development
Become an in demand software engineer by taking this course on Node, SQL, PostgreSQL, and backend web development. As one of the most popular web development st4 hours 59 minutes 41 seconds 5 / 5
SQL Injections Unlocked - SQLi Web Attacks
Learn SQL injection attacks and enhance your web security skills. Understand how attackers exploit SQL vulnerabilities and secure websites effectively4 hours 59 minutes 9 seconds
MySQL High Performance Tuning Guide
Tips for Tuning MySQL like a Pro. Learn how to prevent MySQL performance problems. Understand how MySQL optimizes and executes queries.2 hours 49 minutes 22 seconds
Learn MySQL and Solve 42 Practical Problems
There are a lot of tutorials out there talking about basics of SQL language and statements, which is good. However, a lot of times, just learning the syntax won4 hours 24 minutes 35 seconds
Database DevOps from Start to Finish
If you have only ever built a database using SQL Server Management Studio (SSMS), you are in for a treat. SQL Server Data Tools (SSDT) is designed for building2 hours 40 minutes 37 seconds
Database Design & Implementation
Backend starts from Your Database. When you have a solid database design coding is easy. In this course you will learn how to design databases for your backend applications. You…2 hours 7 minutes 49 seconds 5 / 5