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Transferred from Andrew's blog to the Entity Framework-query across Context Http://columns.chicken-house.net/post/e99ba3e6909ee79a84-Entity-Framework-e8b7a8e8b68a-Context-e79a84e69fa5e8a9a2.aspx First of all, I would like to express my gratitude to the author. below is the text, and I hope he can help you.

Ef4.3 was officially released in February 9. Microsoft's EF team began to work hard in the last year and added an important feature in version 4.3: "database migration ". For the orm framework, the code first function is almost unattractive because few developers use the automatically generated and uncontrollable entity classes, which is not elegant enough. The O

Label:The project needs to migrate the system from the SQL Server database to Oracle. Since most of the data access operations were implemented by wrapping the unified Access portal of the Entity Framework, it was necessary to study how the Entity Framework was transferred from SQL Server to Oracle. Since ef4.x, Oracle

After learning to use MVC, I also started to get started with EF. I don't know much about the principles. I only know where to generate the model corresponding to the database after EF is installed, you do not need to write the model manually. Here we record how to generate a model in the project code from the created database. One is to record this operation method, and the other is to make it easier for cainiao like me to quickly generate a model. (I hope the heroes in the garden will give you

more efficiently and can handle more traffic without delay.In earlier versions of. NET, writing and testing asynchronous code was complex, error-prone, and difficult to debug. But in. Net 4.5, it's so easy to write, test, and debug asynchronous code, so you should always use asynchronous code. Asynchronous code costs less, and the impact on performance is negligible in low-traffic situations, but with high traffic, the potential performance gains are enormous.Creating a Department controllerCre

honor. Just reinstall SQLServer again (fix and install it ), although it said that it cannot coexist with the old version of VS on the same machine, but I installed VS2013.2 again, everything works normally. (If there is any risk, do not follow suit. I am not responsible for all consequences) Sometimes you edit a project, and everything is calm, but when you save, close vs2014, and open vs2014 again to open the project, the "Reference List" in the pr

Average time consumed Current mechanism (simplified) 0.007 0.35 0.02 0.014 0.09775 LINQ to SQL 0.023 0.083 0.102 0.068 0.069 Entity Framework 0.238 3.084 0.009 0.006 0.83425 Read and Write 10 data records for the second time Read/write mode Read duration Add time

Entity Framework 6 Recipes translation Series 3, entityframeworkChapter 2 basis of Object Data Modeling It is very likely that you start to explore the Entity Framework. You may ask "How do we start ?", If this is the case, this chapter is a good start. If not, you have already modeled and feel good about

objectspace is not completed, So Microsoft will include it in the next version.. NET Framework, and the design tool (desinger) is added to form the current ADO. NET Entity Framework. Iii. application scenarios Use ADO. NET Entity Framew