假设程序集 dll:
using Microsoft.SqlServer.Server;
using System.Data.SqlClient;
using System.Data.SqlTypes;
using System;
using System.Text;
namespace CLRFunctions
{
public class T
{
[SqlFunction(DataAccess = DataAccessKind.Read)]
public static String NormalizeString(String s, String normalizationForm)
{
NormalizationForm form = NormalizationForm.FormC;
if (String.Equals(f, "FormD", StringComparison.OrdinalIgnoreCase))
form = NormalizationForm.FormD;
return = s.Normalize(form);
}
}
}
注意:将程序集定位到 .NET 3.5,因为 SQL Server 不支持 .NET 4.0
将程序集复制到某个位置,并且“创建”程序集工作正常:
CREATE ASSEMBLY CLRFunctions FROM 'c:\Program Files\My App\CLRFunctions.dll';
注意:然后启用CLR功能,否则是broken by default :
sp_configure 'show advanced options', 1;
GO
RECONFIGURE;
GO
sp_configure 'clr enabled', 1;
GO
RECONFIGURE;
GO
创建用户定义函数失败:
CREATE FUNCTION NormalizeString(@s nvarchar(max), @normalizationForm varchar(50))
RETURNS nvarchar(max)
AS EXTERNAL NAME CLRFunctions.T.NormalizeString
失败并出现错误:
Msg 6505, Level 16, State 2, Procedure NormalizeString, Line 1
Could not find Type 'T' in assembly 'CLRFunctions'.
为什么 SQL Server 在程序集 CLRFunctions
中找不到类型 T
?
注意:为什么是T
? Cause Microsoft did.
最佳答案
尝试
CREATE FUNCTION NormalizeString(@s nvarchar(max),
@normalizationForm nvarchar(50))
RETURNS nvarchar(max)
AS EXTERNAL NAME CLRFunctions.[CLRFunctions.T].NormalizeString
关于sql-server - SQL Server : Could not find type in the assembly,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/7823488/