when not exists 用法

USE [ChangHong_612]
GO
/****** Object: StoredProcedure [dbo].[st_MES_UpdateInspectResult] Script Date: 10/09/2015 16:15:36 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author: luoxf
-- Create date: 20141023
-- Description: 审核检测

-- =============================================
ALTER PROCEDURE [dbo].[st_MES_UpdateInspectResult] (
@BillNo nvarchar(50),
@CheckMan nvarchar(20),
@Result nvarchar(10)
)
AS
BEGIN

--select abnormalno,* from mes_Inspect where AbnormalNO is not null and checkman is not null order by CheckTime desc

if exists(select * from mes_Inspect where billno=@billno and checkman is not null)
return

if (@Result='NG')
begin
declare @InitValue_IP varchar(50),@Month varchar(10),@InitValue_F varchar(50),@InitValue_O varchar(50)
set @Month=month(getdate())
if (len(@Month)=1)
set @Month ='0'+@Month

select @InitValue_IP = isnull(max(substring(abnormalno,len(abnormalno)-2,len(abnormalno))),0)from MES_Inspect
where abnormalno<> '' and substring(abnormalno,1,4)=convert(varchar(4),getdate(),112) and abnormalno like '%IPQC-ZC-%'

select @InitValue_F = isnull(max(substring(abnormalno,len(abnormalno)-2,len(abnormalno))),0)from MES_Inspect
where abnormalno<> '' and substring(abnormalno,1,4)=convert(varchar(4),getdate(),112) and abnormalno like '%FQC-ZC-%'

select @InitValue_O = isnull(max(substring(abnormalno,len(abnormalno)-2,len(abnormalno))),0)from MES_Inspect
where abnormalno<> '' and substring(abnormalno,1,4)=convert(varchar(4),getdate(),112) and abnormalno like '%OQC-ZC-%'

select @InitValue_IP = convert(int,@InitValue_IP)+1
select @InitValue_F = convert(int,@InitValue_F)+1
select @InitValue_O = convert(int,@InitValue_O)+1

update mes_Inspect
set abnormalno=convert(varchar(4),getdate(),112)+'MS-SL2-'+
case
when checktype in(1,2,3,4) then 'IPQC'+'-ZC-'+@Month+'-'+replace(str(right(@InitValue_IP,3), 3), space(1), '0')

when checktype=5 then
case when CONVERT(nvarchar,DateName(DAY,GETDATE()))='1'
then
case
when not exists(select * from mes_Inspect where abnormalno like '%'+'FQC'+'-ZC-'+@Month+'-'+'%')
then 'FQC'+'-ZC-'+@Month+'-'+'001'
else 'FQC'+'-ZC-'+@Month+'-'+replace(str(right(@InitValue_F,3), 3), space(1), '0')
end

else
'FQC'+'-ZC-'+@Month+'-'+replace(str(right(@InitValue_F,3), 3), space(1), '0')
end

when checktype=6 then 'OQC'+'-ZC-'+@Month+'-'+replace(str(right(@InitValue_O,3), 3), space(1), '0')

end
,
checkResult=@result,
checkman=@checkMan,
checktime=getdate()
where billno=@billno
end
else
begin
update mes_Inspect set checkResult=@result,checkman=@checkMan,checktime=getdate() where billno=@billno and checkman is null
update mes_inspectsingle set Itemvalue=case when itemvalue='NG' then 'OK' else Itemvalue end where billno=@BillNo
update MES_InspectGauge set CheckResult=case when CheckResult='NG' then 'OK' else CheckResult end where billno=@BillNo
end

end

--select abnormalno , * from mes_Inspect where abnormalno like '%'+'IPQC'+'-ZC-'+'07'+'-'+'%'