In the case Store Procedures not work, i think u should try a trigger
Code:
USE [GunzDB]
GO
/****** Object: Trigger [dbo].[DeleteItem] Script Date: 05/13/2007 03:22:42 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author: <Author,,Name>
-- Create date: <Create Date,,>
-- Description: <Description,,>
-- =============================================
ALTER TRIGGER [dbo].[DeleteItem]
ON [dbo].[Items]
AFTER update
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
DELETE FROM [GunzDB].[dbo].[Items]
WHERE RentPeriodRemainder<=0
END
But i think we miss some Store Procedures to make the RentPeriodRemainder count down, so the RentPeriodRemainder will always be the number u set ^^
Anyway, have fun ;)