Online Program - ZrozumSQL (in Polish 🇵🇱)
- Over 30 hours of video materials, collected in 13 Modules
- In detail explaining SQL and giving you a solid foundation in working with databases
- Supporting materials - PDFs, Notes, Slides etc.
- Practical project throughout the program
- Real problems to solve for homework in each module
- Personalized work / code review video for each person work
- Q&A sessions to help you better understand the topics and problems
- A dedicated Slack channel for joint communication and support
SQL Questions & Answers
Do you want to test yourself, prepare for a job interview or maybe you need to find sample questions to verify the candidate?
SQL Fundamentals
Are you looking for a solid dose of knowledge about SQL, you've come to the right place. Below, in groups, you will find entries from our blog on a given topic. Choose what interests you and go to a specific entry!
- Relational Databases Fundamentals
- Databases Internals
- SQL - Data Definition Language (DDL - CREATE / DELETE ...)
- SQL - Data Control Language (DCL - GRANT / REVOKE ...)
- SQL - Data Manipulation Language (DML - INSERT / UPDATE / DELETE ...)
- SQL - Data Query Language (DQL - SELECT ...)
- SQL - JOIN's
- SQL - Aggregate and Analytical functions
- SQL - Antipatterns
- SQL - Performance
- SQL - Tips & Tricks