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Sometimes, you need to find some data in an existing context instead of the database. By befault, Entity Framework always find data in database. If yo 阅读全文
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Creating Entities First of all, Let's create some entities to have a test. 1. Create a project 2. Add following packages by NuGet EntityFramework MySq 阅读全文
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There are three types of relationships in database. They are: One to Many One to One Many to Many The One to Many relationship Write some codes first: 阅读全文
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There are three ways to define the database structure by Entity Framework API. They are: Attributes The DbModelBuilder API Configuration Classes Attri 阅读全文
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Sometimes, you have created two models. They have the same parent class like this: public class Person { public int PersonId { get; set; } public stri 阅读全文
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Sometimes, you've created a table for example named Person . Just then, you want to add some extra information, but don't want to add any new field in 阅读全文
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Sometimes, We want to check the original sql statements. creating a commandInterceptor is a good way to do this. Add a class named MyCommandIntercepto 阅读全文
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一个使用mysql的entity framework的例子 阅读全文
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大家来讨论一下C#是否该支持try/catch/else语法 阅读全文
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MapReduce编程模型 在Google的一篇重要的论文[MapReduce: Simplified Data Processing on Large Clusters][1]中提到，Google公司有大量的诸如Web请求日志、爬虫抓取的文档之类的数据需要处理，由于数据量巨大，只能将其分散在成百上 阅读全文
