public class Program
{[SqlTrigger(Name = @"UsersAudit", Target = "[dbo].[users]", Event = "FOR INSERT")]public static void UsersAudit(){SqlContext.Pipe.Send("UsersAudit start");// Get the trigger context.string userName;string realName;SqlCommand command;SqlTriggerContext triggContext = SqlContext.TriggerContext;SqlDataReader reader;switch (triggContext.TriggerAction){case TriggerAction.Insert:// Retrieve the connection that the trigger is using.using (SqlConnection connection= new SqlConnection(@"context connection=true")){connection.Open();// Get the inserted row.command = new SqlCommand(@"SELECT * FROM INSERTED;",connection);// Get the user name and real name of the inserted user.reader = command.ExecuteReader();reader.Read();userName = (string)reader[0];realName = (string)reader[1];reader.Close();// Insert the user name and real name into the auditing table.command = new SqlCommand(@"INSERT [dbo].[UserNameAudit] (userName, realName) "+ @"VALUES (@userName, @realName);", connection);command.Parameters.Add(new SqlParameter("@userName", userName));command.Parameters.Add(new SqlParameter("@realName", realName));command.ExecuteNonQuery();}break;}SqlContext.Pipe.Send("UsersAudit end");}[Microsoft.SqlServer.Server.SqlProcedure]public static void HelloWorld(out string text){SqlContext.Pipe.Send("Hello world!" + Environment.NewLine);text = "Hello world!";}
}

CREATE PROCEDURE hello
@i nchar(25) OUTPUT
AS
EXTERNAL NAME SqlTriggerContextTest.Program.HelloWorld
GO
-- if the HelloWorldProc class is inside a namespace (called MyNS),
-- the last line in the create procedure statement would be
-- EXTERNAL NAME helloworld.[MyNS.HelloWorldProc].HelloWorld  CREATE TRIGGER UsersAudit
ON [dbo].[users]
AFTER INSERT, UPDATE
AS
EXTERNAL NAME SqlTriggerContextTest.Program.UsersAudit
GO