Blog
Mert Özen's blog posts on software development, backend, frontend, and DevOps.
Series
.NET Core Web API
36
Angular
31
JavaScript Basics
19
JavaScript Intermediate
18
JavaScript Advanced
16
TypeScript Basics
14
TypeScript Intermediate
14
TypeScript Advanced
12
Entity Framework Core
28
Dapper
16
Git & GitHub
29
Web Security (OWASP Top 10)
21
LLM Fundamentals
20
C# Fundamentals
20
Object-Oriented Programming in C#
16
C# Collections and Generics
11
LINQ
17
Asynchronous Programming in C#
17
Advanced C#
14
C# Versions
6
Solution Patterns
22
2 posts found
#migrations
Database
PART 08
Seeding in EF Core: Model Seeding with HasData and Application-Side Seeding
Two ways to add initial data in EF Core: model seeding with HasData and the InsertData/UpdateData/DeleteData it generates, the key and navigation rules, the dynamic value trap; then a rerunnable application-side seeder and a pointer to EF Core 9's UseSeeding.
5 Nov 2026
12 min
27
Database
PART 07
EF Core Migrations: migrations add, database update, Scripts and Bundles
We run EF Core migrations end to end: migrations add/remove, database update and reverting, the anatomy of a migration file, SQL scripts and --idempotent, EF Core 6 migration bundles, and the risks of calling Migrate() at startup.
5 Nov 2026
10 min
21