Use C, .NET classes, and LINQ to interact with databases like Sqlite, Azure SQL Server and even Azure Cosmos DB from .NET 5 apps with Entity Framework Core. See the latest features in action like many-to-many, table-per-type and filtered includes.linq test

Language-Integrated Query (LINQ) is a powerful query language introduced with .Net 3.5 & Visual Studio 2008. LINQ can be used with C or Visual Basic to query different data sources.

LINQ tutorials will help you to learn the LINQ language using topics which go from basic to advanced. These tutorials are broken down into series of related topics, so that you start from a topic which must be understand first, and then gradually learn other features of LINQ sequentially. LINQ tutorials are packed with easy to understand explanations, real-world examples, useful tips, informative notes and points to remember.

These tutorials are designed for beginners and professionals who want to learn LINQ step-by-step.linq

Entity Framework is a term that goes hand by hand with ASP.NET Core. It is one of that technology that is used very often and is not understood most of the time.

This course will teach you everything you need to know about using Entity Framework Core with ASP.NET Core. The skills you will learn will help you to build and architect complex ASP.NET Core applications that make full use of Entity Framework Core with Code First. We will start with the basic fundamentals of Entity Framework Core and then we would dive into advanced concepts.

Unlike other courses, which are outdated or do not convert all the topics. I have especially taken care to keep the course updated as well as cover topics from beginner to advanced topics with Entity Framework Core.

Topics Covered

• Entity Framework Core in .NET 5 (.NET Core)
• Migrations in EF Core
• Data Annotations
• Fluent API
• Add, update and remove objects
• Apply best practices with Entity Framework
• Understand relationships in Entity Framework Core
• Bulk operations in Entity Framework Core
• Change tracker, RAW SQL, Stored Procs, View, and much more.

Use code-first migrations to push changes to the database, and learn how to manage them. Override code-first conventions (using data annotations and fluent API) Understand how LINQ works and how to filter data. Add, update and remove objects Apply best practices with Entity Framework Understand relationships in Entity Framework Corelinq

Language-Integrated Query (LINQ) is an innovation introduced in the .NET Framework version 3.5 that bridges the gap between the world of objects and the world of data.

Traditionally, queries against data are expressed as simple strings without type checking at compile time or IntelliSense support. Furthermore, you have to learn a different query language for each type of data source: SQL databases, XML documents, various Web services, and so on. LINQ makes a query a first-class language construct in C. You write queries against strongly typed collections of objects by using language keywords and familiar operators.

You can write LINQ queries in C for SQL Server databases, XML documents, ADO.NET Datasets, and any collection of objects that supports IEnumerable or the generic IEnumerable interface. LINQ support is also provided by third parties for many Web services and other database implementations.

You can use LINQ queries in new projects, or alongside non-LINQ queries in existing projects. The only requirement is that the project target .NET Framework 3.5 or later.microsoft linq

Glitch is Dead, Long Live Glitch!

Art & Code from the Game Released into Public Domain

The collaborative, web-based, massively multiplayer game Glitch began its initial private testing in 2009, opened to the public in 2010, and was shut down in 2012. It was played by more than 150,000 people and was widely hailed for its original and highly creative visual style.

The entire library of art assets from the game, has been made freely available, dedicated to the public domain. Code from the game client is included to help developers work with the assets. All of it can be downloaded and used by anyone, for any purpose. (But: use it for good.)

Tiny Speck, Inc., the game’s developer, has relinquished its ownership of copyright over these 10,000+ assets in the hopes that they help others in their creative endeavours and build on Glitch’s legacy of simple fun, creativity and an appreciation for the preposterous. Go and make beautiful things.

Glitch has got some beauty, sure. And, you are welcome to help yourself to some of it. Please download away, enjoy, and have fun! (Just don't go redistributing it — point people here, to the source.)linq test

sqlite-net is an open source, minimal library to allow .NET and Mono applications to store data in SQLite 3 databases. It is written in C 3.0 and is meant to be simply compiled in with your projects. It was first designed to work with MonoTouch on the iPhone, but should work in any other CLI environment.

sqlite-net was designed as a quick and convenient database layer. Its design follows from these goals:

• Very easy to integrate with existing projects and with MonoTouch projects.
• Fast and efficient.
• Methods for executing queries safely (using parameters) and for retrieving the results of those query in a strongly typed fashion.
• Linq support so that you don't have to write SQL (see LinqSupport).
• Works with your data model without forcing you to change your classes. (Contains a small reflection-driven ORM layer.)
• It has 0 dependencies aside from a compiled form of the sqlite3 library.

linq

Tired of querying in antiquated SQL?

Well, you don't have to! LINQPad lets you interactively query databases in a modern query language: LINQ. Kiss goodbye to SQL Management Studio!

LINQPad supports everything in C 4.0 and Framework 4.0:

• LINQ to Objects
• LINQ to SQL and Entity Framework
• LINQ to XML
• Parallel LINQ

And that's not all - you can also query:

• OData / WCF Data Services - including StackOverflow, and Windows DataMarket
• SQL Azure, Oracle, SQLite and MySQL
• Microsoft StreamInsight
• Microsoft Dynamics CRM
• Mindscape LightSpeed ORM
• (Even old-fashioned SQL!)

LINQPad is also a great way to learn LINQ: it comes loaded with 500 examples from the book, C 4.0 in a Nutshell. There's no better way to experience the coolness of LINQ and functional programming.

And LINQPad is more than a LINQ tool: it's an ergonomic C/VB/F scratchpad that instantly executes any expression, statement block or program with rich output formattingmicrosoft linq

With the combined launch of Visual Studio 2008, SQL Server 2008, and Windows Server 2008, Microsoft is introducing five implementations of .NET Language Integrated Query (LINQ).

Of these five implementations, two specifically target access to relational databases: LINQ to SQL and LINQ to Entities. This white paper introduces these two technologies and the scenarios in which each can best be used.

Microsoft Language Integrated Query (LINQ) offers developers a new way to query data using strongly-typed queries and strongly-typed results, common across a number of disparate data types including relational databases, .NET objects, and XML. By using strongly-typed queries and results, LINQ improves developer productivity with the benefits of IntelliSense and compile-time error checking.

LINQ to SQL, released with the Visual Studio 2008, is designed to provide strongly-typed LINQ access for rapidly developed applications across the Microsoft SQL Server family of databases.

LINQ to Entities, to be released in an update to Visual Studio 2008 in the first half of 2008, is designed to provide strongly-typed LINQ access for applications requiring a more flexible Object Relational mapping, across Microsoft SQL Server and third-party databases. linq

LINQ to SQL is a great tool that saves a lot of time. However it has one disadvantage: it supports only SQL Server. Anyway it's possible to write your own LINQ provider. Sure, there is one for MySQL. It is called DbLinq, in fact in supports many databases:

* MySQL

* Oracle

* PostreSql

* Ingress

* SqlLitelinq

Linq provider for MySQL, Oracle, SQL Server, PostgreSQL, SQLite, Ingres and Firebirdlinq

LINQ to SQL provides a runtime infrastructure for managing relational data as objects without losing the ability to query. Your application is free to manipulate the objects while LINQ to SQL stays in the background tracking your changes automatically.linq

This section contains the contextual keywords used in query expressions.linq

LINQ is a set of extensions to the .NET Framework that encompass language-integrated query, set, and transform operations. It extends C and Visual Basic with native language syntax for queries and provides class libraries to take advantage of these capabilities.linq

101 LINQ Sampleslinq