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SQL Server Tutorial

100-article SQL Server master path — T-SQL, indexing, stored procedures, HA, SQL Server 2022, and DataVerse projects.

ADO.NET Core Tutorial

100-article data access master path — SqlConnection, stored procedures, transactions, performance, and enterprise projects.

MySQL Tutorial

100-article MySQL master path — InnoDB, window functions, replication, AWS RDS, and DataFlow projects.

MongoDB Tutorial

100-article MongoDB master path — aggregation, sharding, Atlas, vector search, and NoSQLVerse projects.

Oracle SQL Tutorial

96-article Oracle master path — PL/SQL, RAC, Data Guard, RMAN, AWR, OCI, and OracleCore projects.

PostgreSQL Tutorial

100-article PostgreSQL master path — MVCC, JSONB, pgvector, replication, Patroni, and PostgresVerse projects.

Lessons (2523)

Performance Testing for Web API
ASP.NET Core Web API Tutorial · Module 9: Testing
Performance Testing for Web API: free step-by-step lesson with examples, common mistakes, and interview tips — part of A…
.NET
Mediator Pattern — Complete Guide
Design Patterns in C# · Module 3: Behavioral Design Patterns
Mediator Pattern — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — part of…
.NET
User Defined Functions (UDF): Scalar vs Table-Valued
SQL Server Mastery · 4. Database Programmability
Database
Team Collaboration Benefits — Complete Guide
SOLID Design Principles Tutorial · Module 9: Testing and Maintainability
Team Collaboration Benefits — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tip…
.NET
Testable Architecture — Complete Guide
SOLID Design Principles Tutorial · Module 9: Testing and Maintainability
Testable Architecture — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — pa…
.NET
Banking System Architecture — Complete Guide
SOLID Design Principles Tutorial · Module 10: Real-World Enterprise Projects
Banking System Architecture — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tip…
.NET
Table-per-Hierarchy (TPH) Inheritance
Entity Framework Core Mastery · 3. Relational Architecture
.NET
Basic LINQ Queries & IQueryable Execution
Entity Framework Core Mastery · 4. Data Querying & LINQ
.NET
Controller Refactoring — Complete Guide
SOLID Design Principles Tutorial · Module 8: Refactoring and Clean Code
Controller Refactoring — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — p…
.NET
EF Core Setup in Web API
ASP.NET Core Web API · 3. Data Access & Architecture
.NET
Mocking with Interfaces — Complete Guide
SOLID Design Principles Tutorial · Module 9: Testing and Maintainability
Mocking with Interfaces — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — …
.NET
Removing God Classes — Complete Guide
SOLID Design Principles Tutorial · Module 8: Refactoring and Clean Code
Removing God Classes — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — par…
.NET
HTTP Fundamentals for Web API Developers
ASP.NET Core Web API Tutorial · Module 1: Web API Fundamentals
HTTP Fundamentals for Web API Developers: free step-by-step lesson with examples, common mistakes, and interview tips — …
.NET
DDD Basics with EF Core
Entity Framework Core Tutorial · Module 8: Enterprise Architecture
DDD Basics with EF Core: free step-by-step lesson with examples, common mistakes, and interview tips — part of Entity Fr…
.NET
Agent Roles and Responsibilities
Multi-Agent System Project · Design
Learn Agent Roles and Responsibilities in our free Multi-Agent System Project series. Step-by-step explanations, example…
Projects
One-to-Many Relationships & Foreign Keys
Entity Framework Core Mastery · 3. Relational Architecture
.NET
DIP Banking Example — Complete Guide
SOLID Design Principles Tutorial · Module 6: Dependency Inversion Principle (DIP)
DIP Banking Example — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — part…
.NET
Build a CRM with ASP.NET Core MVC
ASP.NET Core MVC Tutorial · Module 10: Real Projects
Build a CRM with ASP.NET Core MVC: free step-by-step lesson with examples, common mistakes, and interview tips — part of…
.NET
DIP in ASP.NET Core — Complete Guide
SOLID Design Principles Tutorial · Module 6: Dependency Inversion Principle (DIP)
DIP in ASP.NET Core — Complete Guide: free step-by-step lesson with examples, common mistakes, and interview tips — part…
.NET
Export Features in ASP.NET Core MVC — Excel and PDF
ASP.NET Core MVC Tutorial · Module 4: CRUD Operations
Export Features in ASP.NET Core MVC — Excel and PDF: free step-by-step lesson with examples, common mistakes, and interv…
.NET
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