C# 将UDF与SQL查询一起使用时出错

我已经使用SQL项目模板在Visual studio中创建了一个CLR，使用C语言作为：

  [Microsoft.SqlServer.Server.SqlFunction()]
    public static SqlDateTime ScalarUDF(SqlInt64 CompanyID)
    {
        SqlInt64 temp = CompanyID;
        string zoneId = "Singapore Standard Time";
        TimeZoneInfo tzi = TimeZoneInfo.FindSystemTimeZoneById(zoneId);
        DateTime result = TimeZoneInfo.ConvertTimeFromUtc(DateTime.UtcNow, tzi);

        return new SqlDateTime(result);
    }

并且还使用query:将UDF创建到SQL中：

-- Install Assembly
CREATE ASSEMBLY UDF_Trial FROM 'C:\Users\Rahul\Documents\visual studio 2013\Projects\UDF_Trial\UDF_Trial\bin\Debug\UDF_Trial.dll'
GO
-- Create ScalarUDF
CREATE FUNCTION [dbo].[ScalarUDF](@CompanyID bigint)
RETURNS datetime
WITH EXECUTE AS CALLER
AS
EXTERNAL NAME UDF_Trial.UserDefinedFunctions.ScalarUDF;
GO

但在执行UDF时，我遇到了一些错误：

我执行UDF作为

选择[dbo].[ScalarUDF]15

但将异常获取为：：

Msg 6522, Level 16, State 2, Line 2
A .NET Framework error occurred during execution of user-defined routine or aggregate "ScalarUDF": 
System.Security.HostProtectionException: Attempted to perform an operation that was forbidden by the CLR host.

The protected resources (only available with full trust) were: All
The demanded resources were: MayLeakOnAbort

System.Security.HostProtectionException: 
   at UserDefinedFunctions.ScalarUDF(SqlInt64 CompanyID)
.

我还将创建程序集时的不安全权限设置为：：

从“C:\Users\Rahul\Desktop\pro\u temp\UDF\u Trial.dll”创建程序集UDF\u试用版 权限设置为不安全； 去

但在这种情况下，我得到的错误如下：

CREATE ASSEMBLY for assembly 'UDF_Trial' failed because assembly 'UDF_Trial' is not authorized for PERMISSION_SET = UNSAFE.  The assembly is authorized when either of the following is true: the database owner (DBO) has UNSAFE ASSEMBLY permission and the database has the TRUSTWORTHY database property on; or the assembly is signed with a certificate or an asymmetric key that has a corresponding login with UNSAFE ASSEMBLY permission.

---

我已将数据库的Trustly设置为ON:：

ALTER DATABASE Learn SET TRUSTWORTHY ON

并已将程序集创建为：：

CREATE ASSEMBLY UDF_Blog FROM 'C:\Users\Rahul\Documents\visual studio 2013\Projects\UDF_Trial\UDF_Trial\bin\Debug\UDF_Trial.dll'
WITH PERMISSION_SET = UNSAFE;
GO

---

问题解决了。

我已将数据库的Trustly设置为ON:：

ALTER DATABASE Learn SET TRUSTWORTHY ON

并已将程序集创建为：：

CREATE ASSEMBLY UDF_Blog FROM 'C:\Users\Rahul\Documents\visual studio 2013\Projects\UDF_Trial\UDF_Trial\bin\Debug\UDF_Trial.dll'
WITH PERMISSION_SET = UNSAFE;
GO

---

问题解决了。

我已将数据库的Trustly设置为ON:：

ALTER DATABASE Learn SET TRUSTWORTHY ON

并已将程序集创建为：：

CREATE ASSEMBLY UDF_Blog FROM 'C:\Users\Rahul\Documents\visual studio 2013\Projects\UDF_Trial\UDF_Trial\bin\Debug\UDF_Trial.dll'
WITH PERMISSION_SET = UNSAFE;
GO

---

问题解决了。

我已将数据库的Trustly设置为ON:：

ALTER DATABASE Learn SET TRUSTWORTHY ON

并已将程序集创建为：：

CREATE ASSEMBLY UDF_Blog FROM 'C:\Users\Rahul\Documents\visual studio 2013\Projects\UDF_Trial\UDF_Trial\bin\Debug\UDF_Trial.dll'
WITH PERMISSION_SET = UNSAFE;
GO

---

问题解决了。

可能重复@MoslemBenDhaou给出正确的答案，而不是查看其他人的答案。在提问之前，请阅读StackOverflow指南。可能重复@MoslemBenDhaou给出正确的答案，而不是查看其他人的答案。提问前请阅读StackOverflow指南。可能重复@MoslemBenDhaou给出正确的答案，而不是查看其他人的答案。提问前请阅读StackOverflow指南。可能重复@MoslemBenDhaou给出正确的答案，而不是查看其他人的答案。提问前请阅读StackOverflow指南。