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ADO.NET Linq To SQl与Data Entity 的使用比较

2008-06-19 15:33 537 查看
I want to
LINQ to SQL is applicable
Use an ORM solution and my database is 1:1 with my object model


Use an ORM solution with inheritance hierarchies that are stored in a single table


Use my own plain CLR classes instead of using generated classes or deriving from a base class or implementing an interface


Leverage LINQ as the way I write queries


Use an ORM but I want something that is very performant and where I can optimize performance through stored procedures and compiled queries


Table 1. LINQ to SQL Scenarios

I want to
LINQ to Entities is applicable
Write applications that can target different database engines in addition to Microsoft SQL Server


Define domain models for my application and use these as the basis for my persistence layer.


Use an ORM solution where my classes may be 1:1 with the database or may have a very different structure from the database schema


Use an ORM solution with inheritance hierarchies that may have alternative storage schemes (single table for the hierarchy, single table for each class, single table for all data related to specific type)


Leverage LINQ as the way I write queries and have the query work in a database vendor agnostic manner.


Use an ORM but I want something that is very performant and where I can optimize performance through stored procedures and compiled queries


Table 2. LINQ to Entities Scenarios

源文档 <http://msdn.microsoft.com/en-us/library/cc161164.aspx>
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