我想通过CLR集成创建自定义SQL函数,但我遇到了T-SQL和CLR类型不匹配错误。返回值的T-SQL和CLR类型不匹配
DLL:
Imports System
Imports System.Data
Imports Microsoft.SqlServer.Server
Public Class Encrypter_Decrypter
<SqlFunction(DataAccess:=DataAccessKind.Read)> _
Public Shared Function EncryptString(ByVal strItem As String)
Dim strPassPhrase As String = "***********"
Dim strInitVector As String = "***********"
Dim objEncryption = New PCI.Encryption()
objEncryption.Initialise(strPassPhrase, strInitVector, -1, -1, -1, "", "", 1)
Dim EncryptedString As String = objEncryption.Encrypt(strItem)
objEncryption = Nothing
EncryptString = EncryptedString
End Function
End Class
创建SQL函数:
CREATE ASSEMBLY EncrypterDecrypter
FROM 'c:\dll\Encrypter_Decrypter\Encrypter_Decrypter.dll'
WITH PERMISSION_SET = SAFE
GO
CREATE FUNCTION EncryptString(@strItem NVARCHAR(MAX)) RETURNS NVARCHAR(MAX)
AS EXTERNAL NAME EncrypterDecrypter.Encrypter_Decrypter.EncryptString;
GO
错误:
CREATE FUNCTION为 “EncryptString” 失败,因为T-SQL和CLR类型的返回值做不匹配。
有人知道我错过了什么吗?
谢谢:)
非常感谢你现在正在工作:)感谢您的建议,加密包自动完成所有工作 –