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Monday, September 08, 2008 11:41 PM

Le Roi Est Mort, Vive Le Roi!

Now that SQL Server 2008 is out the door, I’m full throttle on my new job. I’m totally excited about the improvement I’m working on, and I can’t wait to start blogging about it (once it’s out of secrecy.) Today I’m only changing the outlook of my blog
Posted by Zlatko Michailov | 2 Comments
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Tuesday, May 27, 2008 1:38 PM

Moving On...

I have to admit publically that I’ve decided to take on new challenges unrelated to EDM and Entity Framework. Starting today I’ll be working on the lower levels of the SQL Server Connectivity stack. I’d like to thank all of you who’ve been reading my
Posted by Zlatko Michailov | 2 Comments
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Monday, May 12, 2008 11:45 AM

New version of eSqlBlast - compatible with .NET Framework 3.5 SP1 Beta

The .NET Framework SP1 Beta-compatible version of eSqlBlast is available at http://code.msdn.microsoft.com/esql/Release/ProjectReleases.aspx?ReleaseId=991 . The release includes a source code zip as well. The SP1 Beta distributions of .NET Framework 3.5
Posted by Zlatko Michailov | 1 Comments
Friday, March 14, 2008 3:20 PM

Primer to EntityConnectionStringBuilder

Following the spirit of Primer to ConnectionStringBuilder from ADO.NET 2.0, let’s see how the pattern has evolved in Entity Framework. Building an Entity Connection String from Scratch What’s important to keep in mind before we dive into code samples,
Posted by Zlatko Michailov | 1 Comments
Attachment(s): Program.cs
Friday, March 14, 2008 11:38 AM

Why Should I Use Entity Framework?

If your app is small enough, i.e. you write your own database schema (for SQL Server) and you write the only app over that schema, you don’t really need Entity Framework. In that case, you may consider LINQ to SQL. Now let’s think big. Let’s say you are
Posted by Zlatko Michailov | 2 Comments
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Thursday, January 31, 2008 10:12 AM

eSqlBlast on Code Gallery

MSDN Code Gallery is now live! It’s a place to download compiled binaries rather than source code. The latest eSqlBlast is available at http://code.msdn.com/esql .
Posted by Zlatko Michailov | 0 Comments
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Wednesday, December 19, 2007 11:21 PM

The Edm.Length() Canonical Function over SqlClient

I recently blogged about canonical functions in Entity Framework and SQL Server’s LEN() function . The purpose of those two posts was to lay out the foundation for this one, and to allow it to be brief and coherent. Please read those two posts before
Posted by Zlatko Michailov | 2 Comments
Friday, December 14, 2007 4:03 PM

SQL Server’s LEN() Function

There is a peculiarity around the LEN() function in SQL Server that not many people have realized or paid attention to. It’s the treatment of trailing spaces. The documentation says: “ Returns the number of characters of the specified string expression,
Posted by Zlatko Michailov | 2 Comments
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Friday, December 14, 2007 2:11 PM

Entity Framework and Object/Relational Mapping

Often, people categorize Entity Framework as an Object/Relational Mapper and try to compare it to other O/R Mappers. I dare say that’s an apples-to-oranges kind of comparison. While Entity Framework does have ORM capabilities, that is only a fraction
Posted by Zlatko Michailov | 3 Comments
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Wednesday, December 12, 2007 4:38 PM

eSqlBlast – The Ultimate Tool for Writing Entity SQL Queries

2007.12.18 : Today I posted an update to How to Parse an EntityDataReader - I discovered (and fixed) two bugs in the parsing code. Since the code is taken from eSqlBlast, the same fix should be applied to it too. The code is in project Core, class XmlVisitor,
Posted by Zlatko Michailov | 1 Comments
Thursday, December 06, 2007 9:44 AM

Entity Framework Beta 3 Is Available for Download

Entity Framework Beta 3 and related packages are available for public download: · Entity Framework Runtime : http://go.microsoft.com/fwlink/?LinkId=104981 · Entity Framework Tools : http://go.microsoft.com/fwlink/?LinkId=104983 · Entity Framework Samples
Posted by Zlatko Michailov | 5 Comments
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Wednesday, December 05, 2007 5:01 PM

Entity SQL: Canonical Functions

Canonical functions were introduced in the Beta 2 release of Entity Framework. Their purpose is to expose a [virtually] canonical API beyond the core language constructs. Consumers of canonical functions should be aware that Entity Framework defines only
Posted by Zlatko Michailov | 7 Comments
Tuesday, December 04, 2007 5:11 PM

Definition: API

API = syntax + behavior
Posted by Zlatko Michailov | 3 Comments
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Tuesday, December 04, 2007 4:26 PM

What Do ObjectQuery’s Builder Methods Build

Until Beta 2 ObjectQuery’s builder methods used to build a Command Tree. There were multiple problems with that: · Duplicate code - there is already a component that builds Command Trees from Entity SQL. · Caching – Command Trees are expensive to hash
Posted by Zlatko Michailov | 0 Comments
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Tuesday, December 04, 2007 3:51 PM

How to Get the Native SQL from an ObjectQuery

The way to get the native SQL generated for an ObjectQuery is exactly the same as for EntityCommand – using the new ToTraceString() method introduced in Beta 3. Previously that would require a similar (even more obscure) pattern that involved ObjectQuery.CreateCommandTree()
Posted by Zlatko Michailov | 2 Comments
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