DotNetKicks.com - published database stories

EF 4.3 Code-Based Migrations

Fri, 10 Feb 2012 17:26:34 GMT

Entity Framework 4.3 has been released, and the big new feature is migrations for code-first projects. This article is a walkthrough of how to take advantage of the new migration support.

Book review: Working with NHibernate 3.0

Wed, 08 Feb 2012 20:15:39 GMT

It's been a while since I wrote my last book review, mostly because I'm still trying to figure out when it adds value to write one. For this one it was pretty obvious, there are far too little reviews out there. Being new to NHibernate, and NHibernate being known as having a steep learning curve, I thought it would be a good idea to do some reading. Searching for books on NHibernate 3.0...

Basic Raven DB Indexing and Querying with Lucene

Wed, 08 Feb 2012 17:39:59 GMT

We've got up and running with Raven DB for our new project, which has been a delight to use from a code perspective, but one of the big gaps for me is figuring out how to do SQL like queries. I'm not too bad at putting a SQL query together as something I do semi-regularly as part of my job, so I thought it shouldn't be too much of a stretch to start pulling some statistics. I was wrong.

Why is RAID So Important for Databases?

Tue, 07 Feb 2012 15:32:36 GMT

A good server design has no, or very few, single points of failure. One of the most common server component that fails, are disks. So data redundancy becomes essential to recoverability. Redundant Array of Independent/Inexpensive Disks (RAID) is a disk system that provides better fault-tolerance by making use of redundancy of disk(s).

Telerik OpenAccess SDK - MVC 3, RAD data binding and more

Fri, 03 Feb 2012 17:03:03 GMT

As a response to your constant requests for sample projects demonstrating the best practices of using OpenAccess ORM in web projects, we have released some of the new and updated samples before Q1 2012 so that you can benefit from them immediately. MVC developers will be happy to ...

Telerik OpenAccess ORM - Connection Pooling in Oracle environments

Fri, 20 Jan 2012 08:44:01 GMT

With the Q3 2011 release of Telerik OpenAccess ORM we introduced three connection pool types. In this blog post we will have a look at the connection pooling behavior of the Oracle driver and what setting to be used when we want to use Telerik OpenAccess ORM with Oracle databases.

Seed your database with test data using the entity framework

Wed, 18 Jan 2012 22:13:49 GMT

In this post we fill focus on Data Initializers for EF Code First, this feature allows you to seed your database in development scenario's with some standard test data. I'm assuming you'll already have some experience using EF Code First

Telerik OpenAccess ORM - Stored Procedure Editor essentials

Tue, 17 Jan 2012 15:51:32 GMT

Before Q3 2011 was live we have introduced you one of the major new functionalities you can find in the release - the new Stored Procedure Editor. It is the tool that allows us now to present our stored procedure support as feature complete. Along with the visual interface the Editor is offering, we have enhanced the functionality ...

Telerik OpenAccess ORM - Using the new OpenAccessLinqDataSource

Mon, 16 Jan 2012 13:39:25 GMT

In a previous blog post we have shared with you the upcoming release of a new feature of OpenAccess ORM, helpful for those of you doing RAD development in web environment - the OpenAccessLinqDataSource component. As Q3 is already live, you can try it out! Just drag the component from your Visual Studio toolbox, where you can find it under the Telerik.OpenAccess.Web category:

Telerik OpenAccess ORM Q3 2011 - Connection pool types

Fri, 13 Jan 2012 15:11:44 GMT

With the Q3 2011 release of Telerik OpenAccess ORM we introduced three connection pool type settings. The OpenAccess Connection Pool, OpenAccess Connection Pool with OpenAccess Connection Management and the ADO Connection Pool. This blog post will show how these types can be used and when it makes sense to make use of them.

Redis 2.4.6 has been released

Fri, 13 Jan 2012 15:11:44 GMT

Redis 2.4.6 has been release,it fixes a critical replication bug and adds a minor feature

New Cassandra/CQL reference cards ready for download

Fri, 13 Jan 2012 06:34:17 GMT

If you're like me and sometimes struggle to remember the particular syntax for a CQL or Cassandra nodetool or CLI command, we've got something for you that might help. You can now download reference cards for CQL, along with the Cassandra CLI and nodetool. They're free and pretty darn attractive if I do say so myself. Download them now and let us know what you think.

NoSQL MongoDb Enterprise Design with C# .NET, the Repository Pattern

Tue, 10 Jan 2012 17:12:26 GMT

Learn how to use a NoSQL MongoDb database to create a simple .NET application for displaying Dragons. Our architecture will utilize the repository pattern, combined with a global database context provider. We'll create a 3-tier system for accessing the Dragons, creating, updating, and deleting.

Free Databases in the Window Azure Marketplace

Thu, 05 Jan 2012 18:47:00 GMT

I hadn't heard of the Windows Azure Marketplace prior to the keynote, so I was intrigued to see how data was being sold in it and, more specifically, to see what interesting databases I might find for free or at very low cost. And find them I did.

New in Telerik OpenAccess ORM Q3 2011: Stored Procedure Editor

Wed, 04 Jan 2012 14:38:35 GMT

Supporting stored procedures is nothing new for OpenAccess ORM. The most common solution is to write an additional method for each stored procedure, encapsulating all the required information needed to invoke it, executing it and returning the results. Now you don't even have to create the methods....

OpenAccess ORM Q3 2011: OpenAccessLinqDataSource

Tue, 03 Jan 2012 12:32:47 GMT

We at Telerik have added some exciting new features to the upcoming release of Telerik OpenAccess ORM, offering new capabilities and further optimizing your development process. We can't really wait to show you the details about what we have been working on during the last several months.

NHibernate: Collections of components - an alternative

Fri, 30 Dec 2011 15:33:28 GMT

When we have a model where an entity has some properties collections used for displaying it to the customer and we are not querying our data by these properties at all, it may seem right to map these collections in NHibernate as collections of components. Component in NHibernate is an object without its own identity, being a part of its parent entity. Our collections sounds similiar in terms of lifetime and ownership, but different in terms of relationship - these are one-to-many. In complex scenarios, additional queries became a serious issue. We've decided to try another solution - it's so simple that it can't go wrong.

Entity Framework and T4: Generating GetHashCode() for your entities

Sun, 18 Dec 2011 20:28:19 GMT

A simple Entity Framework T4 template that generates GetHashCode() method

Using MySql as Linked Server in Sql Server 2008

Fri, 16 Dec 2011 10:10:21 GMT

Recently I was given an assignment to create some Reports using SSRS. They system were in use was osTicket (its an open source php, mysql) ticket management system. I decided to use SQL server linked server object. By doing this I can easily query and write stored procedures in sql server which I can then access into SSRS

Performance Tips: Speed up Data Access

Fri, 16 Dec 2011 05:18:28 GMT

Faster performance in business applications comes down to reducing the "critical two" -- disk I/O and trips to the server. Doing that means doing a lot of things right, starting with your database design -- and tweaking your ADO.NET code helps, too.

Mindscape Blog » Blog Archive » 5 reasons not to use a micro ORM

Mon, 12 Dec 2011 06:25:35 GMT

An interesting counter-argument against the recent trends towards lightweight micro-ORM frameworks in the .NET database world.

New and Updated Resources Available for Telerik OpenAccess ORM

Thu, 08 Dec 2011 16:39:34 GMT

As we are constantly trying to make the Telerik OpenAccess ORM learning resources and documentation better and easier to use, we have made some changes that you might find very useful. Getting Started Videos ...

SQL Server Download Links All Editions [Very Useful]

Fri, 02 Dec 2011 11:02:31 GMT

With SQL Server 2012 RC0 recently announced and a plethora of previous editions already available, it can get tedious to keep track of all these downloads. In this post, I will attempt to share the download links of all SQL Server versions - SQL Server 2012, SQL Server 2008 & R2 and SQL Server 2005.

How to map many-to-many in NHibernate correctly

Thu, 01 Dec 2011 11:13:07 GMT

Many-to-many relationships exist only at object model level - at database level it is only a concept implemented using two many-to-one relations with intermediate table. We can implement it the same way in our NHibernate-based object model, but we don't want User and Group to have collections of some UserInGroup objects that have no real object-oriented meaning. We do want User to have many Groups and Group to have many Users - as simple as it can be. Fortunately, this is quite common scenario and NHibernate can support it very well with respect to database-level constraints and good practices, but only when mapped and used with care.

I Just Don't Like Object Mappers

Tue, 22 Nov 2011 14:49:14 GMT

Karl Seguin also discusses the use of Object Relational Mappers, and Data Mappers and how he has a growing dislike of them.