表1
产品号 折扣 折扣价 结算价
A01 0.73 455
A02 0.83 776
A03 0.5 543
A04 0.6 754
表2
起始折扣 截止折扣 结算率
0.7 0.89 0.6
0.5 0.69 0.45
结果表
产品号 折扣 折扣价 结算率 结算价
A01 0.73 455 0.6 273
A02 0.83 776 0.6 465.6
A03 0.5 543 0.45 244.35
A04 0.6 754 0.45 339.3
这个语句该怎么写呀…………。想了好久都没办法,只能按表2一行行去处理……。
产品号 折扣 折扣价 结算价
A01 0.73 455
A02 0.83 776
A03 0.5 543
A04 0.6 754
表2
起始折扣 截止折扣 结算率
0.7 0.89 0.6
0.5 0.69 0.45
结果表
产品号 折扣 折扣价 结算率 结算价
A01 0.73 455 0.6 273
A02 0.83 776 0.6 465.6
A03 0.5 543 0.45 244.35
A04 0.6 754 0.45 339.3
这个语句该怎么写呀…………。想了好久都没办法,只能按表2一行行去处理……。
go
create table [t1]([产品号] varchar(3),[折扣] numeric(3,2),[折扣价] int,[结算价] numeric(5,2))
insert [t1]
select 'A01',0.73,455,null union all
select 'A02',0.83,776,null union all
select 'A03',0.5,543,null union all
select 'A04',0.6,754,null
go
if object_id('[t2]') is not null drop table [t2]
go
create table [t2]([起始折扣] numeric(2,1),[截止折扣] numeric(3,2),[结算率] numeric(3,2))
insert [t2]
select 0.7,0.89,0.6 union all
select 0.5,0.69,0.45
goselect t1.产品号,t1.折扣,t1.折扣价,t2.结算率,t1.折扣价*t2.结算率 as 结算价
from t1
join t2 on t1.折扣 between t2.起始折扣 and t2.截止折扣/**
产品号 折扣 折扣价 结算率 结算价
---- --------------------------------------- ----------- --------------------------------------- ---------------------------------------
A01 0.73 455 0.60 273.00
A02 0.83 776 0.60 465.60
A03 0.50 543 0.45 244.35
A04 0.60 754 0.45 339.30(4 行受影响)
**/
--> 测试数据:[表1]
if object_id('[表1]') is not null drop table [表1]
create table [表1](
[产品号] varchar(3),
[折扣] numeric(6,2),
[折扣价] int
)
insert [表1]
select 'A01',0.73,455 union all
select 'A02',0.83,776 union all
select 'A03',0.5,543 union all
select 'A04',0.6,754
--> 测试数据:[表2]
if object_id('[表2]') is not null drop table [表2]
create table [表2](
[起始折扣] numeric(6,2),
[截止折扣] numeric(6,2),
[结算率] numeric(6,2)
)
insert [表2]
select 0.7,0.89,0.6 union all
select 0.5,0.69,0.45select a.*,b.结算率*a.折扣价 as [结算价] from [表1] a
cross join [表2] b
where a.[折扣] between b.起始折扣 and b.截止折扣
/*
产品号 折扣 折扣价 结算价
A01 0.73 455 273.00
A02 0.83 776 465.60
A03 0.50 543 244.35
A04 0.60 754 339.30
*/
create table tb1(产品号 varchar(12),折扣 money, 折扣价 money, 结算价 money)
create table tb2(起始折扣 money,截止折扣 money, 结算率 money)insert tb1 select 'A01', 0.73,455,0
union select 'A02',0.83 ,776 ,0
union select 'A03',0.5 ,543 ,0
union select 'A04',0.6 ,754 ,0
insert tb2
select 0.7,0.89,0.6
union select 0.5,0.69,0.45 select *,case when 折扣 between 0.70 and 0.89 then 0.60 when 折扣 between 0.50 and 0.69 then 0.45 else 0 end 结算率 ,
case when 折扣 between 0.70 and 0.89 then 0.60 *折扣价 when 折扣 between 0.50 and 0.69 then 0.45*折扣价 else 0 end 结算价
from tb1 /*
产品号 折扣 折扣价 结算价 结算率 结算价
A01 0.73 455.00 0.00 0.60 273.000000
A02 0.83 776.00 0.00 0.60 465.600000
A03 0.50 543.00 0.00 0.45 244.350000
A04 0.60 754.00 0.00 0.45 339.300000
*/
select t1.产品号,t1.折扣,t1.折扣价,t2.结算率,t1.折扣价*t2.结算率 as 结算价
from tb1 t1
join tb2 t2 on t1.折扣 between t2.起始折扣 and t2.截止折扣/*
产品号 折扣 折扣价 结算率 结算价
A01 0.73 455.00 0.60 273.00
A02 0.83 776.00 0.60 465.60
A03 0.50 543.00 0.45 244.35
A04 0.60 754.00 0.45 339.30
*/
IF EXISTS (SELECT 1 FROM SYSOBJECTS WHERE name = 'tba')
BEGIN
DROP TABLE tba
END
CREATE TABLE tba
(
产品号 VARCHAR(10),
折扣 DECIMAL(4,2),
折扣价 INT,
结算价 DECIMAL(10,2)
)
GO
INSERT INTO tba
SELECT 'A01', 0.73, 455,0 UNION
SELECT 'A02', 0.83, 776,0 UNION
SELECT 'A03', 0.5, 543,0 UNION
SELECT 'A04', 0.6, 754,0
GO
IF EXISTS (SELECT 1 FROM SYSOBJECTS WHERE name = 'tbb')
BEGIN
DROP TABLE tbb
END
GO
CREATE TABLE tbb
(
起始折扣 DECIMAL(4,2),
截止折扣 DECIMAL(4,2),
结算率 DECIMAL(4,2)
)
GO
INSERT INTO tbb
SELECT 0.7, 0.89, 0.6 UNION
SELECT 0.5, 0.69, 0.45GOSELECT 产品号,折扣,折扣价,折扣价 * (SELECT 结算率 FROM tbb AS B WHERE A.折扣 BETWEEN B.起始折扣 AND B.截止折扣)
FROM tba AS A产品号 折扣 折扣价 结算价
A01 0.73 455 273.00
A02 0.83 776 465.60
A03 0.50 543 244.35
A04 0.60 754 339.30
create table 表1
(
产品号 varchar(3),
折扣 float,
折扣价 float,
结算价 float
)insert into 表1
select 'A01', 0.73,455,null union all
select 'A02', 0.83,776,null union all
select 'A03', 0.5,54,null union all
select 'A04', 0.6,754,null
create table 表2
(
起始折扣 float,
截止折扣 float,
结算率 float
)insert into 表2
select 0.7, 0.89, 0.6 union all
select 0.5, 0.69, 0.45
select T.产品号,T.折扣,T.折扣价,T.结算率,T.折扣价 * T.结算率 AS 结算价 from (
select *,结算率=(select b.结算率 from 表2 b where a.折扣 between b.起始折扣 and b.截止折扣 ) from 表1 a) T产品号 折扣 折扣价 结算率 结算价
---- ---------------------- ---------------------- ---------------------- ----------------------
A01 0.73 455 0.6 273
A02 0.83 776 0.6 465.6
A03 0.5 54 0.45 24.3
A04 0.6 754 0.45 339.3