SQL SERVER 2005 .NET UDF

using System;
using System.Text.RegularExpressions;
using Microsoft.SqlServer.Server;
public partial class UserDefinedFunctions
{
[Microsoft.SqlServer.Server.SqlFunction(IsDeterministic = true,IsPrecise = true)]
public static bool RegExIsMatch(string pattern,string matchString)
{
// ÔÚ´Ë´¦·ÅÖôúÂë
Regex reg = new Regex(pattern.TrimEnd(null));
return reg.Match(matchString.TrimEnd(null)).Success;
}
};
use AdventureWorks
GO
CREATE ASSEMBLY UDF
from 'C:\Users\Roy\Documents\Visual Studio 2008\Projects\UDF\UDF\bin\Release\UDF.dll'
CREATE FUNCTION fCLRExample
(
@Pattern nvarchar(max),
@MatchString nvarchar(max)
)
RETURNS BIT
AS EXTERNAL NAME UDF.UserDefinedFunctions.RegExIsMatch
SELECT ContactID,FirstName,LastName,EmailAddress,Phone
from Person.Contact
WHERE DBO.fCLRExample('[a-zA-Z0-9_\-]+@([a-zA-Z0-9_\-]+\.)+(com|org|edu|mil|net|cn)',EmailAddress)=1