Kodyaz Development Resources

We recently released Entity Framework 4.3 Beta 1 which includes the ability to configure more DbContext and Code First related settings from your applications Web.config or App.config file.   These Settings are Optional Code First and the DbContext API follow a ‘convention over configuration’ principle. All the settings discussed in this post have a default behavior, you only need to worry about changing the setting when the default no longer satisfies your requirements. All of these settin... [read more]

We have released the final preview of the Code First Migrations work as part of Entity Framework 4.3 Beta 1. This post will provide an overview of the functionality that is available inside of Visual Studio for interacting with migrations. We will focus on the workflow that combines automatic and code-based migrations. In this workflow most changes can be automatically calculated and applied. More complex changes are written out to code-based migrations that reside in your project. There is a... [read more]

We have released the final preview of the Code First Migrations work as part of Entity Framework 4.3 Beta 1. This post will provide an overview of the functionality that is available inside of Visual Studio for interacting with migrations. We will focus on the code-based workflow for using migrations. In this workflow each change is written out to a code-based migration that resides in your project. There is a separate EF 4.3 Beta 1: Automatic Migrations Walkthrough that shows how this same s... [read more]

At the end of November we released Beta 1 of Code First Migrations. At the time we released Code First Migration Beta 1 we also announced that we would be rolling the migrations work into the main EntityFramework NuGet package and releasing it as EF 4.3. Today we are making Beta 1 of EF 4.3 available. This release also includes a number of bug fixes for the DbContext API and Code First. We are planning for this to be the last pre-release version of migrations and our next release will be the f... [read more]

The recent SQL Azure Q4 2011 Service Release includes the new feature SQL Azure Federations which enables greater scalability and performance from the database tier of your application through horizontal partitioning. One or more tables within a database are split by row and partitioned across multiple databases (Federation members). This type of horizontal partitioning is often referred to as ‘sharding’. Detailed information on the SQL Azure Federations feature is available here. The current r... [read more]

We have released the fourth preview of our migrations story for Code First development; Code First Migrations Beta 1. This release includes a preview of the developer experience for incrementally evolving a database as your Code First model evolves over time. This post will provide an overview of the functionality that is available inside of Visual Studio for interacting with migrations. We will focus on the workflow that combines automatic and code-based migrations. In this workflow most chang... [read more]

We have released the fourth preview of our migrations story for Code First development; Code First Migrations Beta 1. This release includes a preview of the developer experience for incrementally evolving a database as your Code First model evolves over time. This post will provide an overview of the functionality that is available inside of Visual Studio for interacting with migrations. We will focus on the ‘no-magic’ workflow for using migrations. In this workflow each change is written out t... [read more]

At the end of September we released Alpha 3 of Code First Migrations. Based on Alpha 2 and Alpha 3 feedback your telling us that we are building the right thing… so it’s time to start improving quality and working towards our first go-live release. Today we are making Beta 1 available which is our first step in that direction.   What Changed This release has been primarily about improving quality and cleaning up the API surface ready to RTM. There aren’t any significant changes to the us... [read more]

One of the most common errors observed when connecting to SQL Azure is – A transport-level error has occurred when sending the request to the server. (provider: TCP Provider, error: 0 - An established connection was aborted by the software in your host machine.).  This issue happens when SqlClient grabs an invalid connection from the pool (connections in the pool become invalid due to throttling in the network or in SQL Azure itself) and returns it to the application.  As a conse... [read more]

We recently posted about our plans to rationalize how we name, distribute and talk about releases. We heard a resounding ‘Yes’ from you so then we posted about our plans for releasing EF 4.2. We then shipped a Beta and a Release Candidate of EF 4.2. Today we are making the final release of EF 4.2 available.   EF 4.2 = Bug Fixes + Semantic Versioning When we released ‘EF 4.1 Update 1’ we introduced a bug that affects third party EF providers using a generic class for their provider facto... [read more]

The EF team has been working to become more agile and get new features into your hands faster. Our first two releases shipped as part of the .NET Framework but, as the result of an effort to release more often, in recent times we have been shipping a slew of “out-of-band” features that build on top of the functionality included in .NET. These out-of-band releases caused some confusion because we didn’t have a consistent way of talking about versions. To avoid generating more o... [read more]

GreetingsDeveloper community: Weheard yesterday and today at the PASS conference about the exciting new areas that we are investing in bringing the power of SQL Server to our customers. Many of our developers who rely on native connectivity to SQL Server primarily use ODBC for their connectivity needs. We have been supporting ODBC as a part of the SQL Native Access Client (SNAC) libraries. In our continued commitment to interoperability, today we also announced that we will be releasing the Mic... [read more]

We recently posted about our plans to rationalize how we name, distribute and talk about releases. We heard a resounding ‘Yes’ from you so then we posted about our plans for releasing EF 4.2. We then shipped EF 4.2 Beta 1. Third party EF provider writers tried out EF 4.2 Beta 1 and identified a couple more areas that were causing issues for them. We have been working to improve these areas and today we are making EF 4.2 Release Candidate available. The final release of EF 4.2 will be... [read more]

Entity Framework 4.2 Release Candidate is now available and contains a small update to the DbContext API & Code First runtime that were released as part of EF 4.1. This post will provide an introduction to Code First development and how it can be used with the DbContext API surface. Code First allows you to define your model using C# or VB.Net classes, optionally additional configuration can be performed using attributes on your classes and properties or by using a Fluent API. Your model ca... [read more]

Entity Framework 4.2 Release Candidate is now available and contains a small update to the DbContext API & Code First runtime that were released as part of EF 4.1. This post will provide an introduction to Model First and Database First development with the DbContext API, using the Entity Data Model Designer in Visual Studio. You will need to have Visual Studio 2010 installed to complete this walkthrough.   1. Create the Application To keep things simple we’re going to build up a b... [read more]

This preview is no longer current. Code First Migrations Beta 1 is now available. A couple of weeks ago we released Alpha 2 of Code First Migrations. Today we are happy to make Alpha 3 available to you. The overall feedback we got on Alpha 2 was that you like the direction we are headed. We heard that there is definitely a use case for automatic migrations, and while not everyone will use them, we should continue to invest in them. You are asking us to look at the story for data migration tha... [read more]

This preview is no longer current. Code First Migrations Beta 1 is now available. We have released the third preview of our migrations story for Code First development; Code First Migrations Alpha 3. This release includes a preview of the developer experience for incrementally evolving a database as your Code First model evolves over time. This post will provide an overview of the functionality that is available inside of Visual Studio for interacting with migrations. We will focus on the ‘no... [read more]

This preview is no longer current. Code First Migrations Beta 1 is now available. We have released the third preview of our migrations story for Code First development; Code First Migrations Alpha 3. This release includes a preview of the developer experience for incrementally evolving a database as your Code First model evolves over time. This post will provide an overview of the functionality that is available inside of Visual Studio for interacting with migrations. We will focus on the wor... [read more]

Entity Framework Code First is a development methodology available beginning with the Entity Framework 4.1. When using Code First development you usually begin by writing C# or Visual Basic .NET classes that define your conceptual (domain) model. Your model can then be used to generate a database schema or be mapped to an existing database. You can then load data from and persist data to database using objects that are instances of the types defined in the conceptual model.   By default, ... [read more]

The commercial release of Microsoft SQL Server, codename “Denali,” will be the last release to support OLE DB.  Support details for the release version of SQL Server “Denali” will be made available within 90 days of release to manufacturing. For more information on Microsoft Support Lifecycle Policies for Microsoft Business and Developer products, please see Microsoft Support Lifecycle Policy FAQ. This deprecation applies to the Microsoft SQL Server OLE DB provider o... [read more]

Greetings to the Developer community: Thank you very much for an overwhelming response on our survey. Feedback is continue to pour. We are extending the deadline to complete the survey to September 16th, 2011 to allow everyone to provide input. Your feedback helps us on the broad SQL Connectivity components that address major development platforms, including ODBC, ADO.NET, JDBC and PHP.   We view your organization as a key stakeholder in the process that we have to identify areas for future... [read more]

This preview is no longer current. Code First Migrations Alpha 3 is now available.   We have released the second preview of our migrations story for Code First development; Code First Migrations Alpha 2. This release includes a preview of the developer experience for incrementally evolving a database as your Code First model evolves over time. This post will provide an overview of the functionality that is available inside of Visual Studio for interacting with migrations. This post assu... [read more]

This preview is no longer current. Code First Migrations Alpha 3 is now available. Six weeks back we released the first preview of Code First Migrations. This preview was called ‘Code First Migrations August 2011 CTP’. However, after some changes to how we name our releases it is best to think of that release as ‘Code First Migrations Alpha 1’. Today we are happy to announce that ‘Code First Migrations Alpha 2’ is available. Alpha 2 is still is primarily focused on the developer experience ... [read more]

We recently posted about our plans to rationalize how we name, distribute and talk about releases.  We heard a resounding ‘Yes’ from you so then we posted about our plans for releasing EF 4.2. Today we are making EF 4.2 Beta 1 available.   EF 4.2 = Bug Fix + Semantic Versioning When we released ‘EF 4.1 Update 1’ we introduced a bug that affects third party EF providers using a generic class for their provider factory implementation, things such as WrappingProviderFactory<TProvide... [read more]

Greetings to the Developer community: Microsoft SQL Server team has been interacting on a regular basis with the developers and users in the form of surveys. During the last 2 years, we completed surveys that focused on the broad SQL Connectivity components that address major development platforms, including ODBC, ADO.NET, JDBC and PHP. These surveys provide us with an ability to validate some of the requests we have got from developers, users and partners such as you as well as ideas that ... [read more]