drop table t_geovindu
create table t_geovindu
( xid int identity (1, 1),
price money,
debitcredit varchar(2),
adate datetime default(getdate()) )
insert into t_geovindu(debitcredit,price) values('c',10)
insert into t_geovindu(debitcredit,price) values('c',25)
insert into t_geovindu(debitcredit,price) values('c',36)
insert into t_geovindu(debitcredit,price) values('c',66)
insert into t_geovindu(debitcredit,price) values('d',-11)
insert into t_geovindu(debitcredit,price) values('c',32)
insert into t_geovindu(debitcredit,price) values('d',-50)
--select a.xid, a.price,
(select sum(price) from t_geovindu b where b.xid <= a.xid) as balance,debitcredit
from t_geovindu a
--select xid, price,
(case when balance is null then price else balance end ) as balance
from
(select a.xid, (select sum(price) from t_geovindu b where b.xid < a.xid) as balance , a.price
from t_geovindu a) x
--select sum(price) from t_geovindu b where (b.xid < a.xid)
select a.xid, (select sum(price) from t_geovindu b where b.xid < a.xid) as balance , a.price
from t_geovindu a
---create function mysum(@xh int, @price int) returns int
begin
return (select
(case when balance is null then @price else balance end) as balance
from ( select sum(price) as balance from t_geovindu where xid < @xh) x)
end---
select xid, price, dbo.mysum(xid, price) as balance
from t_geovindu
create table vipnodly
( vid int identity (1, 1) primary key, invoiceno nvarchar(50),indate datetime, vipno nvarchar(50),amount int,dcr nvarchar(20))go
set identity_insert [dbo].vipnodly on
insert vipnodly(invoiceno,indate,vipno,amount,dcr) select invoiceno,indate,vipno,amount,dcr from vipdly as a where vipno='geovindu' order by a.indate
select * from vipnodly
--set identity_insert dbo.tool on
create function [dbo].[getvipnodlylist]
( @id nvarchar(20)
)returns @tree table (vid int identity (1, 1), invoiceno nvarchar(50),indate datetime, vipno nvarchar(50),amount int,dcr nvarchar(20))
asbegin
insert @tree(invoiceno,indate,vipno,amount,dcr) select invoiceno,indate,vipno,amount,dcr from vipdly as a where vipno=@id order by a.indate
return
endgo
select * from [dbo].[getvipnodlylist] ('geovindu') as a order by indate
---sql server聚合函式和子查詢迭代求和
---如果id不是第一條記錄，會出現第一行統計合計有問題，所以需查詢生成乙個新的id增長記錄
---銷售單號碼 銷售單日期 所得/已使用積分 可用積分 積分類別
select a.invoiceno as '銷售單號碼', a.indate as '銷售單日期',a.amount as '所得/已使用積分',
(select sum(amount) from [dbo].[getvipnodlylist] ('geovindu') b where b.vid <= a.vid) as '可用積分',a.dcr as '積分類別'
from [dbo].[getvipnodlylist] ('geovindu') a
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