data access
Entity Framework Core Articles, Tutorials & News
Entity Framework Core articles, tutorials, and news from the DotNetNews archive.
544 articles Updated
This DotNetNews topic collects Entity Framework Core tutorials material from the daily archive. Entity Framework Core is part of the data-access layer most .NET apps rely on, whether the store is relational or document-oriented. The page is for people who already ship C# and need a faster way to find relevant posts.
Expect publisher tutorials, release notes, architecture write-ups, and field notes linked from DotNetNews issues. Start here is a short editorial shortlist for Entity Framework Core; the archive list is chronological and larger. Nothing here claims every article was production-tested by the editors.
Recurring subtopics in recent issues include EF Core tutorials, EF Core migrations, EF Core performance, and LINQ EF Core. Secondary angles such as Entity Framework Core and EF Core tutorials appear when the archive actually covered them. Related hubs such as Dapper for C# and .NET and SQL Server for C# and .NET cover adjacent problems.
Start here
Editor picks for EF Core
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The Migration That Lied for Two Years
rogerkeizer.medium.com Issue #504
Covers the Migration That Lied for Two Years.
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Fastest Way to Bulk Insert Thousands of Rows in EF Core
codewithmukesh.com Issue #502
Covers fastest Way to Bulk Insert Thousands of Rows in EF Core.
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Entity Framework Core Performance Tuning for Large Applications
c-sharpcorner.com Issue #501
Optimize EF Core for large apps: Boost performance with AsNoTracking, pagination, indexing, caching, and more.
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EF Core Migration Bundles: What They Are & Why They Matter
medium.com Issue #501
Migration bundles are still underused; this is a useful operational topic.
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The C# 14 field Keyword Looks Like Free Cleanup. It Can Still Break Your EF Core Mapping
c-sharpcorner.com Issue #501
C# 14 field keyword can break EF Core backing-field mapping and reflection code.
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Track every EF Core record change with temporal tables
roundthecode.com Issue #499
Temporal tables remain one of the most useful underused SQL Server features, and this walks through the EF Core side clearly.
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Stop Over-Fetching: Master EF Core Projections for Faster, Leaner APIs
bogdan-hatis.medium.com Issue #498
If your APIs are slow, projections are one of the highest-value EF Core habits to build early.
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EF Core and Azure SQL Database: A Step-by-Step Guide
antondevtips.com Issue #498
Practical guide for getting EF Core working cleanly against Azure SQL, including resiliency and passwordless access.
Archive
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Newest first
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Let Postgres Enforce Tenant Isolation
milanjovanovic.tech Issue #542
EF Core query filters can be bypassed. PostgreSQL row-level security enforces tenant isolation on reads and writes, if you connect with the right database role…
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Filtering EF Core by a Large List: The 2,100 Parameter Wall
codewithmukesh.com Issue #540
EF Core 10 changed how Contains sends a list to SQL Server. Here is the real parameter ceiling, what happens when you cross it, and benchmarks for every fix.
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AI agents, API security, concurrency bugs
DotNetNews Issue #537
Explore how coding agents hunt for context, secure ASP.NET Core APIs, manage settings with Options Pattern, and debug concurrency issues.
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EF Core navigation property returning null? Here's why
roundthecode.com Issue #536
Find out why your EF Core navigation property come back as null. Learn how Include() fixes it, when you need it, and the pitfalls to watch for.
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6 Ways to Speed Up Your .NET Web API
martinbrn.medium.com Issue #535
Caching, async, pagination, compression, EF Core and pooling.
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.NET Data Community Standup: How to start contributing to Entity Framework Core
youtube.com Issue #533
Learn how to start contributing to the Entity Framework Core project. Where to start. How to build the repository. How it is layered. How tests work. Etc. 🎙️ Featuring: Jiri Cincura #efcore #ef #dotn...
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PostgreSQL 19 Beta 3: Testing Temporal Tables with EF Core
c-sharpcorner.com Issue #533
Learn how to test PostgreSQL 19 Beta 3 temporal tables with EF Core, including temporal queries, compatibility testing, and potential query behavior changes.
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Beware of ValueGeneratedOnAdd when using EF
josef.codes Issue #531
How a self-generated GUID had EF marking my brand-new claims as Modified instead of Added, and the one line of config that fixed it.
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PostgreSQL 19 Beta 3: Testing Temporal Table Queries with EF Core
c-sharpcorner.com Issue #531
Explore PostgreSQL 19 temporal table capabilities with EF Core and test temporal queries, historical data access, performance, and .NET integration.
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Querying and Performing Transactions Across Multiple Database Schemas in a Modular Monolith
medium.com Issue #530
Building a Modular Monolith gives you clear boundaries between modules, but it also introduces a challenge: how do you query data that… Continue reading on CodeX »
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Your EF Core Query Looks Fine… Until It Runs 1,001 Queries
medium.com Issue #530
The N+1 Query Problem in EF Core — What It Is, Why It Hurts, and How to Fix It
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PostgreSQL 19 Beta: Benchmarking JSONB Workloads from .NET APIs
c-sharpcorner.com Issue #529
Benchmark PostgreSQL 19 Beta JSONB workloads from .NET APIs and evaluate query performance, indexing strategies, EF Core behavior, and database scalability.
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.NET 11 Preview 7: What’s New and Why Developers Should Explore It
c-sharpcorner.com Issue #529
A simple and practical look at .NET 11 Preview 7, covering the latest features, performance improvements, ASP.NET Core updates, C# development, EF Core, cloud tools, and what developers should know be...
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PostgreSQL 19 Beta: Benchmarking JSONB Indexes with EF Core
c-sharpcorner.com Issue #528
Benchmark PostgreSQL 19 Beta JSONB indexes with EF Core by measuring query performance, indexing strategies, execution plans, storage, and application response times.
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.NET 11 Preview 7 Brings Updates Across C#, ASP.NET Core, EF Core, and Windows Forms - infoq.com
infoq.com Issue #528
.NET 11 Preview 7 Brings Updates Across C#, ASP.NET Core, EF Core, and Windows Forms infoq.com
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The Silent Performance Killer: Understanding the N+1 Query Problem in EF Core
c-sharpcorner.com Issue #527
Learn how to identify and fix the N+1 query problem in Entity Framework Core using Include, projection, relationship queries, and efficient LINQ patterns to improve database performance.
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Benchmarking PostgreSQL 19 Beta Planner Changes with EF Core
c-sharpcorner.com Issue #527
Benchmark PostgreSQL 19 Beta query planner changes with EF Core using realistic workloads, execution plans, query latency, throughput, and database performance metrics.
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My API Test Passed. EF Core Still Run 51 Queries.
medium.com Issue #526
I was working on an EF Core endpoint and noticed something I’d probably ignored plenty of times before.
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Field-Level Encryption in EF Core: AES-GCM for PII Columns
medium.com Issue #524
Transparent database encryption protects the file, then decrypts for anyone who can query it. When a column holds data sensitive enough…
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EF Core 11 Query Translation Changes Under Real Workloads
c-sharpcorner.com Issue #523
Evaluate EF Core 11 query translation changes with real workloads. Learn to benchmark, inspect SQL, and analyze execution plans for optimal performance.
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Full Outer Joins in LINQ: Performance and SQL Translation
c-sharpcorner.com Issue #523
Explore .NET 11's FullJoin in LINQ for explicit full outer joins. Optimize database queries with EF Core translation and understand performance implications.
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Benchmarking PostgreSQL 18 AIO with Real EF Core Workloads
c-sharpcorner.com Issue #523
Benchmark PostgreSQL 18 AIO with EF Core workloads. Measure impact on ASP.NET Core apps, storage I/O, and query performance.
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.NET Data Community Standup: You won't believe what Chris is doing with EF interceptors 🤯
youtube.com Issue #522
Join us for another show where Chris Klug shows us all the things he uses interceptors for! 🎙️ Featuring: Chris Klug, Jiri Cincura #ef #efcore #data #dotnet #interceptors
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SQL Server Vector Search: Benchmarking EF Core Workloads
c-sharpcorner.com Issue #521
Benchmark SQL Server vector search with EF Core. Explore exact vs. approximate search, performance factors, and best practices for RAG.
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Database Performance in .NET
medium.com Issue #521
In Part 1, I wrote about boundaries. In Part 2, I wrote about aggregates and invariants. In Part 3, I wrote about domain events. In Part 4…