Databases management systems - conceptual - logical design

من 169.7 SAR /س

Learn about:
- Normalization
- Relation data model and its nested relations
- SQL Language, scripts and others
- Dynamic SQL
- Security and User authorization
- Object oriented data model
- Functional dependencies
- Different type of data model, such as Datalog

معلومات إضافية

Student laptop required

المكان

عبر الانترنت من كندا

السن

الأطفال (7-12 سنة)

شباب (13-17 سنة)

الكبار (18-64 سنة)

الكبار (65 سنة فأكثر)

مستوى الطالب

مبتدئ

متوسط

متقدم

المدة

60 دقيقة

الدرس يدور باللغة

الإنجليزية

الفرنسية

الإسبانية

الألمانية

مهارات

قاعدة بيانات oracle

قاعدة البيانات

برمجيات الكمبيوتر

الجاهزية في الأسبوع العادي

(GMT -05:00)

نيويورك

على الانترنت عبر كاميرا ويب

Mon

Tue

Wed

Thu

Fri

Sat

Sun

00-04

04-08

08-12

12-16

16-20

20-24

Amin

4.96

(56)

Looking to master programming and become a skilled developer? In this course, you'll learn the basics of Python and other programming languages, as well as how to use them to build machine learning models. We also offer specialized assistance for students in programming and database management using SQL.

Python is a powerful general-purpose language used in web development, data science, software prototyping, and more. Its simple and easy-to-use syntax makes it an excellent choice for beginners learning to program.

Additionally, upon request, we offer courses in other programming languages such as C, JAVA, R, and MATLAB.

Classes can be conducted remotely or in person, and we tailor our instruction to meet individual or group needs.

If you have any questions, feel free to contact us.

Abdallah

4.96

(56)

After Completing Our Course:
- High Earning Potential: Skilled programmers are in high demand, commanding competitive salaries across various industries.

- Versatile Career Opportunities: Open doors to careers in software development, data science, web development, game design, and more.

- Cutting-Edge Skills: Stay ahead in the fast-evolving tech landscape by mastering the most popular and widely used programming languages and frameworks.

- Innovation and Creativity: Enhance your ability to create innovative solutions, develop new technologies, and contribute to exciting projects.

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- Career Advancement: Stand out in the job market with a robust programming skill set, increasing your chances of career advancement and promotions.

- Lifelong Learning: Cultivate a mindset of continuous improvement and lifelong learning, staying relevant and adaptable in your career.

**Programming and Coding Lessons for All Ages**

Unlock the world of coding with our comprehensive programming and coding lessons designed for both adults and kids. Whether you're a beginner or looking to enhance your skills, our courses cover a wide range of programming languages and technologies to suit your needs.

**Course Offerings:**
- **Python**: Learn the fundamentals of programming with one of the most versatile and popular languages.
- **HTML & CSS**: Build and style your own websites from scratch.
- **JavaScript**: Add interactivity to your web projects and enhance user experience.
- **MySQL**: Master database management and SQL queries.
- **Dart & Flutter**: Create beautiful, natively compiled applications for mobile, web, and desktop from a single codebase.
- **C++**: Dive into the world of object-oriented programming and system-level coding.
- **C#**: Develop robust applications with this powerful language used in a variety of industries.

**Class Formats:**
- **Offline Classes in Egypt**: Join us in person for hands-on learning and direct interaction with our experienced instructors.
- **Online Classes**: Participate from anywhere in the world with our flexible online courses, designed to fit your schedule.

**Who Can Join?**
- **Adults**: Whether you're looking to start a new career, enhance your current skills, or simply explore a new hobby, our classes are perfect for you.
- **Kids**: Our engaging and interactive lessons make learning to code fun and accessible for younger students.

**Why Choose Us?**
- **Experienced Instructors**: Learn from industry professionals with years of teaching and real-world experience.
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- **Flexible Learning Options**: Choose between offline and online classes to suit your lifestyle and learning preferences.

Join us today and start your journey into the exciting world of programming and coding with the expert instructor Abdallah!

========================================
Comment:
Looking to master programming and become a skilled developer?
In this course, you will learn the basics and tools to manipulate coding and programming languages as well as using them to build machine learning models. We also provide assistance to students specializing in programming and database management using SQL
Under special request, we provide courses on other programming languages.
If you have any further questions, feel free to contact us.

Coding is a powerful general-purpose programming methods. It is used in web development, data science, software prototyping, etc. Fortunately for beginners, Coding has a simple and easy to use syntax. This makes Python a great language for learning programming for beginners.
In this course, you will learn the basics and tools for manipulating python as well as its use to build machine learning models. We also provide assistance to students specializing in python programming and database management using SQL
If you have any further questions, please do not hesitate to contact us.

Oussama

4.96

(56)

Your project is broken? Deadline approaching? Can't deploy? I help developers and students fix bugs, optimize code, and deploy applications to production.
I Specialize In:

Emergency Debugging: Find and fix errors fast (frontend crashes, backend timeouts, database issues)
Deployment Rescue: Get your app live when nothing works (AWS, Vercel, Netlify)
Performance Optimization: Speed up slow applications (database queries, API responses, bundle size)
CI/CD Setup: Automate your deployment pipeline (GitHub Actions, testing, monitoring)

Common Problems I Solve:

❌ "My app works locally but crashes in production"
❌ "Database queries are too slow"
❌ "Authentication isn't working"
❌ "Can't deploy to AWS / Vercel"
❌ "Getting weird errors I don't understand"
❌ "Payment integration (Stripe) not working"

Technologies I Work With:

Frontend: React, Next.js, TypeScript, Vue, Angular
Backend: Node.js, NestJS, Express, Python (Django, Flask)
Databases: PostgreSQL, MySQL, MongoDB, Redis
Cloud: AWS (EC2, RDS, S3), Vercel, Netlify, Render
DevOps: Docker, CI/CD, GitHub Actions, Nginx

Perfect For:

Students: Fix your project before the deadline
Junior Developers: Debug production issues you can't solve alone
Freelancers: Get unstuck on client projects fast
Startups: Fix and deploy your MVP without hiring a full-time engineer

How It Works:

Live Debugging Session: We fix it together via screen share
Code Review: I show you how to prevent the issue in the future
Documentation: You get a summary of what was fixed and why

Average Resolution Time:

Simple bugs: 1-2 hours
Deployment issues: 2-3 hours
Complex debugging: 3-5 hours

Urgent projects accepted (same-day availability for emergencies).

Salah

4.96

(56)

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.

Hayat

4.96

(56)

This course is designed for anyone interested in learning data science using Python. It provides a hands-on introduction to fundamental data analysis tools such as NumPy, pandas, matplotlib, and seaborn. You'll learn how to manipulate datasets, create visualizations, and lay the foundations for statistical analysis and machine learning.

The course combines theory and practical exercises for effective, practical progress. No prior programming experience is necessary: we'll start with the basics to build solid, usable skills quickly.

Amal

4.96

(56)

Python is a simple, powerful, and versatile programming language, ideal for beginners looking to learn or change careers in computer science. This course will help you understand the basics of programming (variables, loops, conditions, functions) through practical, hands-on exercises.
You'll learn how to create your first scripts, manipulate data, and automate simple tasks. All in an accessible, interactive, and practical setting.

This course is aimed at anyone who is a beginner, curious about digital technology, or who wishes to develop skills useful in many professional sectors.

Nahed

4.96

(56)

كورس أساسيات البرمجة بلغة C++ مصمم للمبتدئين ويؤهلك لفهم التفكير البرمجي وكتابة برامج حقيقية بطريقة صحيحة ومنظمة. ستتعلم اساسيات لغة ال C++ وبنهاية الكورس ستتمكن من فهم مبادئ البرمجة والتفكير المنطقي كتابة برامج كاملة بلغة C++ من الصفرو تحليل المشكلات وتحويلها إلى حلول برمجية
استمتعوا معي بدراسة البرمجة والقدرة على الابداع بها

Wissem

4.96

(56)

I teach coding to beginners and intermediate students.
Lessons focus on logic, basic programming, and practical exercises.
Classes are adapted to the student’s pace.
Students can choose between website or mobile app development.Hands on dev

Laroussi

4.96

(56)

*الهدف: فهم الذكاء الاصطناعي بلا خوف، استخدامه لتبسيط الحياة، وكشف الفخاخ الرقمية**

### **1: إزالة الغموض عن الذكاء الاصطناعي (ما هو بالضبط؟)**

* **الذكاء الاصطناعي ليس "روبوت الأفلام":** الفرق الجوهري بين الخيال العلمي والواقع العملي.
* **كيف يعمل (ببساطة):** تخيل "مكتبة عملاقة"؛ لقد قرأ الذكاء الاصطناعي مليارات الكتب ويستخدمها لتوقع تكملة جملة ما أو ابتكار صورة جديدة.
* **أين نستخدمه حالياً؟** المصحح اللغوي، مقترحات نتفليكس ويوتيوب، نظام الملاحة (GPS)، والمساعدات الصوتية مثل (سيري وأليكسا).

---

### **2: استخدام الذكاء الاصطناعي لتسهيل حياتك**

* **التحاور مع الذكاء الاصطناعي (ChatGPT, Claude, Gemini):**
* كتابة رسائل البريد الإلكتروني الرسمية أو الخطابات المعقدة.
* تلخيص المقالات الطويلة أو الوثائق الضخمة.
* تخطيط مسارات السفر أو ابتكار وصفات طعام من المكونات المتوفرة في الثلاجة.

* **الإبداع والذاكرة:**
* إنشاء صور مبتكرة لبطاقات المعايدة (عبر Midjourney أو DALL-E).
* ترميم وتلوين صور العائلة القديمة.

3: فن التحدث مع الآلة (مهارة الـ Prompt)**

* **أسلوب السياق:** لماذا عبارة "أعطني وصفة كعكة" أقل فعالية من "أنا أعاني من حساسية الجلوتين وسأستقبل 4 أشخاص، أعطني وصفة كعكة شوكولاتة بسيطة".
* **تقمص الأدوار:** تعلم أن تطلب من الذكاء الاصطناعي "تحدث كخبير سياحي" أو "أجبني كمهندس زراعي مختص".

4: الاحتياطات والتفكير النقدي (دليل النجاة)**

الهلوسة الرقمية":** فهم أن الذكاء الاصطناعي قد يقدم معلومات خاطئة بثقة تامة (لا تعتمد عليه أبداً في استشارة طبية أو قانونية دون تحقق).
حماية الخصوصية
عدم مشاركة بيانات حساسة (أرقام الهوية، كلمات المرور، تفاصيل البنك).
إدراك أن كل ما تكتبه قد يُستخدم في تدريب الأنظمة مستقبلاً.

كشف التزييف العميق (Deepfakes):**
كيفية تمييز الصور أو الفيديوهات المفبركة (التدقيق في تفاصيل اليدين، الانعكاسات الغريبة، أو الصوت المعدني).
* القاعدة الذهبية: التحقق عبر مقاطعة المصادر المختلفة.

5: الأخلاقيات والأثر (رؤية مستقبلية)**

حقوق الملكية:** لمن تعود ملكية الصورة التي أنشأها الذكاء الاصطناعي؟
الأثر البيئي:** استهلاك المياه والطاقة في مراكز البيانات الضخمة.
المستقبل:** هل سيحل الذكاء الاصطناعي محلنا أم سيكون مساعداً لنا؟

نصيحة إضافية:** بما أنك تستهدف منطقة الخليج، يفضل استخدام مصطلحات مثل "التحول الرقمي" (Digital Transformation) و"الابتكار" (Innovation) في مقدمة عرضك، فهي كلمات رنانة جداً لدى صناع القرار هناك.

Oussema

4.96

(56)

Tous les sections ,Maths pour les élèves de bac, eco ,maths ,info , sciences
Maths pour les élèves de bac, eco ,maths ,info , sciences
Maths pour les élèves de bac, eco ,maths ,info , sciences
Maths pour les élèves de bac, eco ,maths ,info , sciences

Amine

4.96

(56)

◾ Tools

RStudio • SQL • SPSS • SAS • Jamovi • JASP

◾ Statistical Methods & Tests

Student's t-test • ANOVA • MANOVA • ANCOVA • Regression (linear & logistic) • Correlation • Chi-square • Nonparametric tests • PCA • MCA • Exploratory factor analysis • Classification / Clustering • Mediation • Moderation • Interpretation

◾ Data analysis & decision support

- Data preparation, structuring and validation using SAS, R and SQL
- Descriptive, exploratory and multivariate statistical analyses on business data
- Production of performance indicators and actionable analyses to support decision-making

◾ Selection and implementation of methods

- Preparation and structuring of databases
- Hypothesis testing and univariate, bivariate and multivariate analyses (ANOVA / ANCOVA)
- Linear and logistic regressions
- Factor analyses (PCA / MCA)
- Mediation and moderation models
- Classification / clustering

1) Academic support

- Lectures, tutorials, projects and assignments in statistics
- Help in understanding and interpreting the results
- Preparation for exams and academic presentations

2) Statistical analysis

- Descriptive statistics (univariate and bivariate)
- Multivariate analyses
- Data exploration and outlier detection

3) Statistical tests

- Correlations (Pearson, Spearman, Cohen's Kappa)
- t-tests (one and two samples, independent or paired)
- Chi-square, binomial tests
- z-scores and associated indicators

4) Statistical modeling

- Linear regressions (simple and multiple)
- Logistic regression
- Interpretation of coefficients, diagnostics and validation of models

5) ANOVA & ANCOVA

- One- or multi-factor ANOVA
- Repeated measures ANOVA
- Fixed and random effects
- Post-hoc tests and effect sizes

6) Factor analyses

- ACP / PCA (scree plot, factor scores, matrices)
- Exploratory factor analysis
- Factorial rotations
- Validation and interpretation of structures and clusters

◾ Reporting & communication

- Clear, structured and concise reporting of results
- Visualizations tailored to decision-makers
- Support for strategic and operational decision-making

Chrayet

4.96

(56)

Specialized in using Power BI and able to configure you on demand, whether you are a beginner who wants to understand the basics of data analysis or a professional seeking to master building advanced reports and dashboards.

Microsoft Power BI is considered one of Microsoft's most powerful business intelligence tools, and is widely used in the fields of industry 🏭, finance 💰, commerce 📊, project management 📈, human resources 👥, supply chains 🚚 and more.

With Power BI you can:

Linking multiple data sources (Excel, ERP, SQL, SharePoint...).

Cleaning and transforming data professionally using Power Query.

Creating powerful data models using DAX.

Interactive and easy-to-read dashboard design.

Track Key Performance Indicators (KPIs) in real time.

Supporting decision-making through in-depth and accurate data analysis.

I offer practical training based on real-world scenarios from your work environment, simplifying technical concepts like Data Modeling and DAX in a systematic and accessible way. The goal is to empower you to transform raw data into strategic insights that help you make smart, fast decisions.

Mastering Power BI gives you a strong added value in the job market, and enables you to lead the digital transformation within your organization 🚀

A customized training program can be set up according to your level and professional needs.

Farouk

4.96

(56)

These courses are part of a structured and progressive training in Object-Oriented Programming (OOP) with JavaScript, designed for beginner or intermediate developers who want to understand in depth how the language works, write clearer, more maintainable code and prepare themselves calmly for modern frameworks like React ⚛️.

Object-Oriented Programming is often perceived as complex or abstract.

My goal is simple: to make it logical, concrete, and immediately applicable.

🎯 Training Objectives

Upon completion of this training, you will be able to:

Understanding what Object-Oriented Programming really is (and when to use it)
Create and manipulate objects in JavaScript in a clean and efficient way
Use ES6 classes, constructors, and methods with confidence
Mastering this, the prototype, and the instantiation logic
Apply encapsulation, inheritance, and polymorphism without confusion
Avoiding common mistakes made by OOP beginners
Structure your JavaScript code like a professional developer

📖 Training Plan – Object-Oriented Programming in JavaScript
1. Introduction to Object-Oriented Programming 🧠
Understanding the concept, objectives and benefits of OOP.
2. Procedural Programming vs. OOP
Why unstructured code quickly becomes unmanageable.
3. Objects in JavaScript
Properties, methods and representation of the real world.
4. The keyword this
Understanding the execution context (often poorly understood).
5. Limitations of simple objects
Why duplicating code is a bad idea.
6. Constructive functions
Create multiple objects from the same model.
7. The keyword new
What it's actually doing under the hood.
8. The prototype
Sharing methods and memory optimization.
9. ES6 Classes
Modern syntax and best practices.
10. The builder
Proper initialization of objects.
11. Data Encapsulation
Protect the internal state of objects.
12. Inheritance between classes
Reusing code intelligently.
13. The keyword super
Communication between parent and child in the classroom.
14. Polymorphism
The same behavior, several forms.
15. Composition vs. Inheritance
Choosing the right architecture.
16. Best practices in OOP
Write readable, scalable, and maintainable code.
17. Common mistakes made by beginners
Pitfalls to absolutely avoid.
18. Guided practical exercise
Creation of a concrete class (product, user, etc.).
19. Assessment Quiz (Multiple Choice Questions)
To validate the actual understanding of the concepts.

🛠️ Teaching method: Understand before writing

This training program is based on a progressive and pragmatic approach:
Clear and illustrated explanations
Concrete examples from real projects
Simple but effective exercises
Constant questioning to avoid rote learning
Adaptation to the learner's level and pace
Here, we don't "recite OOP" — we understand it.

🚀 Learner's result

At the end of the training, you will not only know how to write a JavaScript class.
You will know:

1- Why does it exist?
2- When to use it
3- and when not to use it

You will leave with:
a solid understanding of OOP
a cleaner and more professional code
an ideal foundation for learning React, Node.js or any other modern framework

Serine

4.96

(56)

Currently a first-year undergraduate student in Mathematics, I offer tutoring for middle and high school students.

Having already given private lessons, I know how to adapt to each student's difficulties to help them progress in arithmetic, algebra, and geometry. My unique strength lies in my proficiency in programming (Python, C, SQL) and office software (Excel, PowerPoint), which allows me to assist students with their computer science or technology projects.

I can give lessons in French, English or Arabic, depending on your needs.

Ismail

4.96

(56)

Python is today one of the most in-demand programming languages in the world, used in software development, data analysis, artificial intelligence, and automation.

This course is designed to guide you step by step, whether you're a beginner or looking to deepen your skills. My approach is practical and project-oriented: you'll learn by coding.

In the program :
• Python basics (variables, conditions, loops)
• Functions and modular programming
• Lists, tuples, dictionaries
• Object-oriented programming
• File manipulation
• Introduction to NumPy and Pandas (data analysis)
• Concrete mini-projects adapted to your level

This course is aimed at students, engineers, professionals or anyone wishing to develop solid skills in Python programming.

The sessions are personalized according to your objectives: academic success, exam preparation, university projects or professional development.