/****** Object:  View [dbo].[vMsAppUsed]    Script Date: 11/20/2013 10:35:28 ******/
IF  EXISTS (SELECT * FROM sys.views WHERE object_id = OBJECT_ID(N'[dbo].[vMsAppUsed]'))
DROP VIEW [dbo].[vMsAppUsed]
GO
/****** Object:  View [dbo].[vMsAppUsed]    Script Date: 11/20/2013 10:35:28 ******/
SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

CREATE VIEW [dbo].[vMsAppUsed]
AS
select app_id,appweight,used,selected,
appweight-used-usedweight remain, 
appweight-usedweight-used-selected canbeused
from (select ap.id app_id,ap.[weight] as appweight,ap.usedweight,
case when selected is null then 0 else selected end selected,
case when used is null then 0 else used end used
from import_approval ap
left join 
 (select T1.app_id,sum(T1.selected) selected,sum(T1.used) used from
 (select app_id,
 case cancellation when 0 then [weight] else 0 end selected ,
 case cancellation when 1 then [weight] else 0 end used 
 from import_appstate) T1 group by T1.app_id)T2 on T2.app_id=ap.id)T3
            
GO