facebook
    Szymon
    Trusted teacher
    FavouritesAdd to Wish List
    FavouritesAdd to Wish List
    Trusted teacher
    from17.00EUR/ h

    College SQL Exam Preparation - Learn Everything about PostgreSQL "SELECT" statements!

    Are you preparing for your college SQL exams and want to excel in database querying? Join my SQL Exam Preparation course, where you’ll get expert guidance from an experienced tutor with a strong background in databases. (mainly PostgreSQL and mySQL) With 2 years of SQL experience, top scores in exams at KdG University, and over a year of tutoring, I’ll help you master SELECT statements and beyond.

    What you’ll learn:

    - Basics of SQL: tables, columns, rows
    - Writing SELECT queries
    - Filtering data using WHERE, LIKE, and logical operators
    - Using ORDER BY and LIMIT for sorting and limiting results
    - Aggregate functions: COUNT, SUM, AVG, MIN, MAX
    - GROUP BY and HAVING clauses for data aggregation
    - Joins: INNER JOIN, LEFT JOIN, RIGHT JOIN, FULL JOIN
    - Subqueries and nested SELECT statements

    Who is this for? This course is ideal for anyone looking to strengthen their SQL skills, whether you're a beginner or preparing for college-level exams. We’ll cover core SELECT query concepts, ensuring you have the confidence to work with real-world data and ace your tests.

    Looking for something more advanced? Check out my other course on CREATE and INSERT statements.

    Extra information

    Bring your own laptop with PostgreSQL installed!

    Location

    At student's location: Around Antwerp, Belgium
    Online via webcam

    |
    Use ⊞+wheel to zoom!
    +

    General info

    Age:
    Teenagers (13-17 years old)
    Adults (18-64 years old)
    Student level:
    Beginner
    Intermediate
    Duration:
    60 minutes
    120 minutes
    The class is taught in:English, Polish

    About Me

    Hi! I’m a skilled and dedicated developer with expertise in Java, Spring, JavaScript, Node.js/Express.js. I'm consistently recognized as a "programming wizard" by my friends, colleagues, and teachers. With many years of programming experience and a strong background in backend/bot development, I specialize in building robust applications and coding every silly idea that comes to my mind. I have also worked with frontend technologies like React, html+css, JavaFX, and Next.js

    About a year ago, I have discovered my love for spreading my knowledge onto others. Since then I have been preparing students for exams, and teaching anything from beginner to advanced topics in multiple programming and database query languages.

    Education

    I have been taking every single class and course about computers and programming ever since I started elementary school. I have finished high school with an Honors Diploma and multiple recognitions in IT fields: robotics, coding, software engineering. After that, I started studying at KdG University, where I am still studying (currently year 2).

    Experience / Qualifications

    I have written tens if not hundreds of programming projects both by myself and with teams of other developers. I've been programming in Java, Python, and JavaScript almost daily for the past 3 years. I have scored an average of 19.5/20 on my 4 University programming exams.
    Ready to dive into the world of JavaScript? Whether you're starting from scratch or want to level up your skills, this course will guide you through the core concepts of Vanilla JavaScript—the foundation of web development. By the end, you’ll be able to build interactive web pages, manipulate the DOM, and even create cool animations and games using HTML Canvas. What you’ll learn: - JavaScript fundamentals: variables, data types, functions, loops, and conditionals - DOM manipulation: interacting with and modifying HTML elements - Event handling: adding interactivity to your websites with events like clicks and keypresses - JSON and data fetching: working with APIs to load dynamic content - Asynchronous JavaScript: promises, async/await - Best practices and clean coding Bonuses: - HTML Canvas: Create graphics, animations, and games! - Local Storage: Save data in the browser for a persistent user experience - JavaScript ES6+ Features: Stay up-to-date with the latest syntax and capabilities Who is this for? This course is perfect for beginners who want to master the fundamentals of JavaScript, as well as developers looking to solidify their understanding of Vanilla JavaScript before moving into frameworks. We’ll focus on practical, hands-on learning to ensure you walk away with skills you can immediately apply.
    Are you preparing for your college Java exams and want to ace them? Join my College Java Exam Preparation course to receive expert guidance from a seasoned Java programmer. With 3+ years of experience in Java, consistent top scores in programming exams at KdG University (average of 19.5/20), and over a year of tutoring experience, I’m here to help you master everything from foundational concepts to advanced topics. What you’ll learn: - Java basics: variables, data types, operators - Control flow: loops, if/else, switch + break/continue - Arrays and Strings - Object-oriented programming (OOP): classes, methods, static keyword, constructors(and overloading), - Advanced OOP: inheritance, polymorphism, encapsulation, abstraction, interfaces - Collections, exceptions, file handling, and I/O Who is this for? This course is perfect for students at any level of Java proficiency—whether you're just starting or looking to fine-tune your advanced skills before exams. We'll focus on core exam topics and work through real-world Java problems to make sure you feel confident and well-prepared. Need something more advanced? Check out my other courses on JDBC (with SQL), JavaFX, Spring basics, and Spring Boot
    Dive into the world of web development with my comprehensive HTML course, designed for beginners who want to build stunning, functional websites from the ground up. Whether you’re curious about how websites work or want to create your own, this course will take you step-by-step through the essentials of HTML and beyond, giving you the skills to develop real-world projects confidently. What You'll Learn: - HTML Basics: Learn the building blocks of the web by mastering tags, elements, attributes, and how to structure content. - Interactive Forms: Create dynamic forms for login pages, surveys, and more, and handle user input effectively. - Adding Media: Discover how to embed images, videos, and other multimedia to make your websites more engaging. - Linking and Navigation: Build a fully connected website using hyperlinks, menus, and navigation best practices. - Introduction to CSS: Apply basic styles to your HTML content, learning how to change fonts, colors, layouts, and more. - Responsive Web Design: Ensure your websites look great on mobile, tablet, and desktop using modern techniques like Bootstrap. - Semantic HTML: Understand the importance of clean, readable code with semantic tags that improve your website’s accessibility. Course Features: - Hands-on exercises for every topic to reinforce learning. - Personal feedback and guidance on your projects. - Practical examples and projects to help you apply your skills in real-world scenarios. - Learn at your own pace, with flexible lessons tailored to your skill level. Who is this course for? This course is perfect for beginners with little to no coding experience. By the end, you’ll have a strong foundation in HTML and basic web development, empowering you to continue learning CSS, JavaScript, or dive into more advanced web development.

    Ask a question

    Send a message explaining your needs and Szymon will reply soon:
    The more detail, the better.
    Ex. "Hi, when are you available to meet for a lesson?"

    Availability of a typical week

    (GMT -05:00) New York
    MonTueWedThuFriSatSun
    0              
    1              
    2              
    3              
    4              
    5              
    6              
    7              
    8            Saturday at 8:00  Sunday at 8:00
    9            Saturday at 9:00  Sunday at 9:00
    10  Monday at 10:00  Tuesday at 10:00  Wednesday at 10:00  Thursday at 10:00  Friday at 10:00  Saturday at 10:00  Sunday at 10:00
    11  Monday at 11:00  Tuesday at 11:00  Wednesday at 11:00  Thursday at 11:00  Friday at 11:00  Saturday at 11:00  Sunday at 11:00
    12  Monday at 12:00  Tuesday at 12:00  Wednesday at 12:00  Thursday at 12:00  Friday at 12:00  Saturday at 12:00  Sunday at 12:00
    13  Monday at 13:00  Tuesday at 13:00  Wednesday at 13:00  Thursday at 13:00  Friday at 13:00  Saturday at 13:00  Sunday at 13:00
    14  Monday at 14:00  Tuesday at 14:00  Wednesday at 14:00  Thursday at 14:00  Friday at 14:00  Saturday at 14:00  Sunday at 14:00
    15              Sunday at 15:00
    16    Tuesday at 16:00  Wednesday at 16:00  Thursday at 16:00  Friday at 16:00  Saturday at 16:00  Sunday at 16:00
    17              
    18              
    19              
    20              
    21              
    22              
    23              
    from 17€Online via webcam
    from 20€At student's home

    Good-fit Instructor Guarantee


    If you are not satisfied after your first lesson, Apprentus will find you another instructor or will refund your first lesson.

    Online reputation

    • Instructor since October 2024
    • 1 repeat student
    • Phone number verified
    • Google connected
    • Linkedin connected

    Availability of a typical week

    (GMT -05:00) New York
    MonTueWedThuFriSatSun
    0              
    1              
    2              
    3              
    4              
    5              
    6              
    7              
    8            Saturday at 8:00  Sunday at 8:00
    9            Saturday at 9:00  Sunday at 9:00
    10  Monday at 10:00  Tuesday at 10:00  Wednesday at 10:00  Thursday at 10:00  Friday at 10:00  Saturday at 10:00  Sunday at 10:00
    11  Monday at 11:00  Tuesday at 11:00  Wednesday at 11:00  Thursday at 11:00  Friday at 11:00  Saturday at 11:00  Sunday at 11:00
    12  Monday at 12:00  Tuesday at 12:00  Wednesday at 12:00  Thursday at 12:00  Friday at 12:00  Saturday at 12:00  Sunday at 12:00
    13  Monday at 13:00  Tuesday at 13:00  Wednesday at 13:00  Thursday at 13:00  Friday at 13:00  Saturday at 13:00  Sunday at 13:00
    14  Monday at 14:00  Tuesday at 14:00  Wednesday at 14:00  Thursday at 14:00  Friday at 14:00  Saturday at 14:00  Sunday at 14:00
    15              Sunday at 15:00
    16    Tuesday at 16:00  Wednesday at 16:00  Thursday at 16:00  Friday at 16:00  Saturday at 16:00  Sunday at 16:00
    17              
    18              
    19              
    20              
    21              
    22              
    23              
    from 17€Online via webcam
    from 20€At student's home

    Good-fit Instructor Guarantee


    If you are not satisfied after your first lesson, Apprentus will find you another instructor or will refund your first lesson.

    Share


    Han
    Programming, data analysis, and statistics courses by a French master's graduate
    Graduated with a Master's degree in Applied Mathematics and Optimization, I offer tailored support to meet your needs (courses/projects/exams) in programming, analysis, and statistics. Currently working in a field involving C++ programming, scripting, and mathematical modeling (constraint programming, linear/MIP programming, Branch and Bound, etc.), I can provide assistance ranging from installing different software to ongoing support for projects, whether for your academic studies or professional work. Note (regarding statistics courses): Please note that for statistics courses, I recommend contacting me at least four weeks in advance of your desired deadline (exams/projects) to ensure ample preparation time otherwise I systematically decline the requests. This will allow us to have productive and effective sessions tailored to your needs. PROGRAMMING Languages: C/C++, Java, VBA, etc... STATISTICS Software: Matlab, R, (Excel) Courses can be conducted in French or English, depending on your preferences.

    Siyavash
    Teaching Python by PhD student.
    I am a Ph.D. student at the University of Antwerp in the field of regional economics and the economics of transportation. Besides, I have a master's degree in civil engineering and my mathematic level is proficient. Additionally, I attained 169/170 in GRE quantitative reasoning.

    Salah Eddine
    Master Python with Courses Suitable for All Ages and Levels! Beginners, Intermediates, Professionals, Everyone is Welcome
    Master Python with Personalized Courses Discover the art of programming with Python courses tailor-made to meet your specific needs. Whether you are a beginner, intermediate or professional, my lessons are suitable for all levels. Why Choose My Courses? Personalized Teaching Approach: Each course is tailored to your skill level and individual goals. Practical Experience: Learn by doing with real-world projects that build your understanding and skills. Ongoing Support: Get unlimited email support for any questions you have between sessions. As a Python expert, I have a passion for teaching and sharing my knowledge. My goal is to guide you effectively in your learning journey. Book Your First Lesson: Start your journey to Python mastery now by booking your first lesson. Whether you aspire to enter the development field or hone your existing skills, these courses are designed for you.

    Youssef
    Analog and digital electronics, VHDL, FPGA, programming
    doctoral student in engineering sciences provides support courses in analog and digital electronics at any DEUG level and engineering schools. having scientific and technical knowledge, three years of experience in the field of teaching, pedagogy and a sense of listening and analysis, I am able to help pupils and students and train them in the chapters of which they are having difficulty. for more info please contact me

    Malek
    Python, C/C++ Programming for All Levels: From Fundamentals to Advanced Libraries.
    Learn Python and understand algorithms and data structures with simple, clear lessons. We'll cover key topics like sorting, searching, and recursion, with hands-on practice to build your skills. Perfect for beginners or anyone looking to improve their coding and problem-solving!

    Benito
    Python, SQL and/or Machine/Deep Learning Classes at your place or Online!
    I am currently working as an online teacher 🧑‍🏫 and course content developer in Python, SQL and a wide range of Machine/Deep Learning topics 🧑‍💻. My experience enables me to offer lessons ranging from beginner to advanced levels. I can tailor the classes to your specific needs and schedule, providing a well-structured learning path 🚀. What do you get from me? 👉 Learn at your own pace without any pressure 👉 Well-documented tutorials What topics do I usually cover at the beginning for people without Python/SQL experience? ✔️ Understanding the basic concepts (variables & types) --> Python/SQL ✔️ Math & Statistics (explained easily) --> Python ✔️ Data Manipulation (tables, dataframes, joins,...) --> Python/SQL What topics do I cover for people with Python/SQL experience? ✅ Classic libraries: Pandas, Numpy, Scikit-learn, Tensorflow, Pytorch ✅ Data Analytics/Visualization: Plotly, Seaborn, Matplotlib ✅ Domains: Regression, Classification, NLP, LLM, Computer Vision, Generative AI, Time Series, Neural Networks, Ensemble Methods ✅ MLOps: MLflow, Prefect, Mage, GCP, AWS Whether you are new to the field, seeking to enhance your skills, or require assistance with a work/school project, feel free to reach out to me!😉

    Salah
    Learn MS (Word, Excel and PowerPoint) Microsoft Office / Expand your knowledge of Microsoft office!
    I offer Microsoft Word, Microsoft Excel, Microsoft PowerPoint, Microsoft Office sessions Word is a word processing software developed by Microsoft. It is used to create documents, letters, reports, presentations... Excel is a spreadsheet software from the Microsoft Office suite developed and distributed by the publisher Microsoft. It is used to create spreadsheets, tables, graphs, etc. Powerpoint is a presentation software developed by Microsoft. It is part of the Microsoft Office suite. It is used to create presentations, slide shows... I am waiting for your message.

    Mahmoud
    Computer Programing, Coding instructor, Data analyst, Web Development, Software engineer
    I specialize in teaching web technology and data analysis for students at all levels, covering and i can learn children from 6 to 18 years old web technology( HTML, CSS, JavaScript, C#, ASP.NET MVC, API development, database management) data analysis( Excel, Power BI, SQL, and Python). My goal is to make complex concepts accessible and engaging, helping students build both foundational skills and industry-relevant expertise. I provide structured lessons with hands-on projects and assign exercises after each session to reinforce learning. Progress is closely monitored, with regular feedback provided to keep students motivated and improving. Whether you're a beginner eager to build your first web page, a student looking to analyze data effectively, or a budding programmer ready to create dynamic applications, my courses are tailored to your pace and goals. You'll develop real-world skills and gain confidence in a supportive learning environment designed to challenge without overwhelming.

    Pr YSF
    Analog and digital electronics, VHDL, FPGA, programming
    Engineer and senior professor of engineering sciences provides support courses in analog and digital electronics at all levels, engineering schools. having a scientific and technical knowledge, five years of experience in the field of teaching, teaching and a sense of listening and analysis, I am able to help pupils and students and train them in the chapters of which they have difficulties. for more info please contact me

    Ron
    Computer Science Tutoring - American Harvard and Yale Educated Tutor
    I am an Ivy League educated tutor ready to help you learn computer science to achieve higher exam scores, gain admission to top universities and advance your career. I encourage students to explore topics they enjoy and strive to make each lesson entertaining. Learning should be fun, so my approach expands students' horizons, increasing their creativity so they realize their potential. Please click “Request a Booking” to book a lesson.

    Elmehdi
    I'm a developer coach with over 10 years of experience in website and database development. Titolay
    I'm a developer coach with over 10 years of experience in website and database development. Holding a professional license and several industry-recognized certifications, he is a MySQL expert and able to walk you through the most complex requests. As a coordinated and passionate website builder, I am able to share my knowledge and experience with over 100's of people to help achieve their development goals. Many renewable projects are experienced and able to deliver high quality results. If you are looking for a talented developer coach to help you with your MySQL demands, please feel free to contact me.”

    Younes
    Scratch, Roblox: Code for Fun - A Fun Adventure for Kids and Beginners!
    With Scratch and Roblox, programming becomes child's play! Learn how to create animations, games, and interactive stories using colorful, easy-to-manipulate blocks of code. No complex language here, just a visual and intuitive approach to make learning as fun as possible. Whether you are a parent wanting to introduce your children to the language of programming or a beginner curious to discover the world of coding, this training is suitable for all ages. No prerequisites necessary, just a dose of curiosity and a desire to have fun while learning. As a trainer, I am committed to creating a caring and creative learning environment. I will use teaching methods adapted to each child, promoting positive interaction and encouraging the free expression of creativity. The goal is to make each lesson an engaging and enriching experience.

    Ron
    Computer Science Tutoring - American Harvard and Yale Educated Tutor
    I am an Ivy League educated tutor ready to help you learn computer science to achieve higher exam scores, gain admission to top universities and advance your career. I encourage students to explore topics they enjoy and strive to make each lesson entertaining. Learning should be fun, so my approach expands students' horizons, increasing their creativity so they realize their potential. Please click “Request a Booking” to book a lesson.

    Ron
    Computer Science Tutoring - American Harvard and Yale Educated Tutor
    I am an Ivy League educated tutor ready to help you learn computer science to achieve higher exam scores, gain admission to top universities or advance your career. I encourage students to explore topics they enjoy and strive to make each lesson entertaining. Learning should be fun, so my approach expands students' horizons, increasing their creativity so they realize their potential. Please click “Request a Booking” to book a lesson.

    Azzedine
    Maîtrisez NinjaTrader: Develop an expert in trading!
    Get an expert in trading with NinjaTrader! If you are passionate about trading and souhaitez maitriser on one of the platforms of trading with more people in the market, this announcement is for you! If you are an expert in NinjaTrader, I offer you some training to help you get into this trading platform as an exception. If you want to use the trading manual or automate your strategies to use the C# language and other personal indicators, these configurations will guide you through the process. Advice for all Nivea traders, technicians, and experienced professionals, to see who you can attend: A training app for the use of NinjaTrader, comprenant of navigation in the interface, execution of orders and analysis of operations. Detailed instructions on the creation and optimization of automated trading strategies using the C# language. Conseils pratiques sur l'utilisation des indications personnalisés pour ajouter votre touche analytique et prendre des décisions de trading claires. If you want to generate additional revenues from trading or do trading activities at regular times, you will be able to prepare the necessary concierges and competencies to make profit from your financial markets. I hope you have the opportunity to develop a veritable expert in trading with NinjaTrader! Contact your maintenant to reserve your place and start your purchases over the successful financing.