This is odd. Have a test table with an id and name field no primary key was set as it was a quick test hack. Pulled the table into the LINQ Designer and noticed none of the validation partial methods were there. There was no OnnameChanged. Nowhere. After banging my head I made ID a primary key and boom...

SOLUTION: Ok fired up SQL profiler and see my problem, the non compiled query seems to not evaluate the query until you actualy use the object. But the Compiled version is hitting the database straight away. And as I was not using this data the non compiled version seemed fast as it never hit the database...

Hello all, I decided to implement tagging on my video library. My first solution was to use one table for the tags. Containing the videoid and tagname. When I loaded in 1,000,000 test tags this became slow to generate my tag cloud data. My new solution was to split up the tags into two tables. One containing...

Hi All, Have run into some issues with using default values in my SQL database with LINQ. I set AutoGenerated in the LINQ Designer to true which made use of my default values but this did not let me update this manually as it would throw an exception. I got a good suggestion from Young Joo to keep autogenerated...

Hey All, Had a query which I was paging on the front end. I knew that a certain product was meant to be in my display but could not see it. But on page 2 a product would repeat itself. Odd, got into profiler and looked at the queries. The first page would get a select top 9 which would not do any orderby...

Hi All, I am currently working on a project and we are using VB.NET, I am using LINQ to SQL for my data access. I have just implemented my search query and thought I would check the generated SQL's execution plan and found that the subtree cost was about 7.3. I know that I get different SQL between C#...