将Sql转换为linq到sql .......... [英] Convert Sql into linq to sql..........

问题描述

如何为下面的SQL查询编写linq to sql查询.

how to write a linq to sql query for the below sql query.

SELECT distinct lkpGeoCountry.countryName,lkpGeoLanguage.languageName
FROM   dbo.lkpxrfGeoCountryLanguageTactic
INNER JOIN lkpGeoCountry
ON dbo.lkpxrfGeoCountryLanguageTactic.countryID =lkpGeoCountry.countryID
INNER JOIN lkpGeoLanguage
ON lkpxrfGeoCountryLanguageTactic.languageID=lkpGeoLanguage.languageID

推荐答案

如果创建内部连接是隐式的适当的DBML.创建文件并添加选定的表.确保上面的每个联接都存在关系.您的代码将类似于以下内容:

Inner joins are implicit if you create a proper DBML. Create the file and add the selected tables. Make sure the relationships are there per your joins above. Your code will be similar to the following:

YourDataContext dc = new YourDataContext();
var languages = dc.lkpxrfGeoCountryLanguageTactics.lkpGeoCountries.Select(c=>c.lkpGeoLanguage.languageName).Distinct();

干杯.

Cheers.

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