casting to decimal is not supported in LINQ to entities queries Change connection string of Linq to Sql entities Changing Multiple Properties Of An Object Using A Single Indexer And A Single LINQ Query CharIndex in LINQ check duplicated columns in datatable using linq Check for Duplicate data in ...
Please help me on this linq query to sql query here is foreign key relation is there for these 3 tables please help me write in sql var versionPackageMapping = from verMap in this.MobileUpdateContext.VersionPackageMappings.Include(Constants.PACKAGE) join pkg in this.MobileUpdateContext.Packages ...
After a long struggle I find out the way to convert a Linq Query resultset to DataTable object. The attached source code shows how to do it. I am sharing this article with my developer friends and make their life easier. Here are two samples. Sample I: I created a public method calle...
Below is my full sql query need to convert into linq query select distinct pd.personId from t1 (NOLOCK) pd inner join t2 (NOLOCK) fo on fo.personId = pd.createdBy and fo.isActive=1 left join t3 (NOLOCK) fap on pd.personId=fap.personId and fap.TypeId=232 left join t4 (NO...
您無法直接呼叫此函式。 此函式只能出現在 LINQ to Entities 查詢內。 此函式會轉譯為資料庫中的對應函式。 如需對應 SQL Server 函數的相關信息,請參閱STR (Transact-SQL)。 適用於 .NET Framework 4.8.1 及其他版本 產品版本 .NET Framework4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, ...
I've got a hard problem to solve.. I've I run a query with linq like this: Person person = (from p in ctx.Persons where p.name.Contains("smith") select p).First() The sql query executed against my DB is like select * from Persons where name like@p1...@p1= '%smith%' ...
Try following procedure. The stored procedure simplifies the query and encapsulates it, making it ...
Linqer SQL to LINQ converte正式版可以帮助你将自己的代码数据软件中,从而转换成为可以在SQL数据库中运行的语句,方便您快速编辑修改数据库代码,插入如sql语句;linqer是C #和VB语言的一部分,在进行转换的时候,需要生成LINQ语句,您可以在词汇列表上查看一些常见的语句类型,方便您在输入的时候获得最简单的sql语句编辑...
而且一般ForeignKey的类型是varchar，为了兼容其他表的主键可能不一样。这样在Linq查询的时候就不能直接...
要使用 Lampda或Linq中的SqlFunctions.StringConvert(), 需要引用命名空间using System.Data.Objects.SqlClient, 该函数可进行模拟数据库中的number 到 string 的类型转换,查询IQuerable时用得上。 Namespace:System.Data.Objects.SqlClient Assembly:System.Data.Entity (in System.Data.Entity.dll)...