创建sql自定义的函数及商品分页sql存储过程

--商品筛选时判断品牌ID是否存在

--select dbo.isValite(94,94)
create function isValite(@brandId int,@bId int)
returns int
as
begin
Declare @rNumber int
if @brandId = @bId
set @rNumber = 1
else
set @rNumber = 0
if @bId = 0
set @rNumber = 1
return @rNumber
end
go

--判断商品筛选输入价格是否有
--select dbo.comparePrice(269.00,100,300)
create function comparePrice(@price decimal(8,2),@priceA decimal(8,2), @priceB decimal(8,2))
returns int
as
begin
declare @j int
if @price >= @priceA and @price <= @priceB
set @j = 1
else
set @j = 0
if @priceA = 0 and @priceB = 0
set @j = 1
return @j
end
go

--函数相当于split
create function f_split(@SourceSql varchar(1000),@StrSeprate varchar(10))
returns @temp table(a varchar(100))
as
begin
declare @i int
set @SourceSql = RTRIM(LTRIM(@SourceSql))
set @i = charindex(@StrSeprate,@SourceSql)--CHARINDEX 返回字符串中指定表达式的起始位置。
while @i >= 1
begin
insert @temp values(left(@SourceSql,@i-1))
set @SourceSql=substring(@SourceSql,@i+1,LEN(@SourceSql)-@i)
set @i=charindex(@StrSeprate,@SourceSql)
end
if @SourceSql<>‘\‘
insert @temp values(@SourceSql)
return
end
go
-- select * from dbo.f_split(‘198,199,204,210‘,‘,‘)

--函数判断sku是否包含该输入的筛选属性值串
create function isExists(@stringCode varchar(500),@numbers varchar(500))
returns int
as
begin
declare @returnValue int
if @numbers = ‘0‘
set @returnValue = 1
else if (select count(a) from dbo.f_split(@stringCode,‘,‘)) < (select count(a) from dbo.f_split(@numbers,‘,‘))
set @returnValue = 0
else if (select count(j.a) from (select a from dbo.f_split(@stringCode,‘,‘)) j inner join (select a from dbo.f_split(@numbers,‘,‘)) s on j.a = s.a ) = (select count(a) from dbo.f_split(@numbers,‘,‘))
set @returnValue = 1
else
set @returnValue = 0
return @returnValue
end
go

----商品分页刷新筛选
create proc GetExtractCommodityRefresh
(
@SortId int,--商品类别Id
@BrandId int,--品牌ID
@PriceA decimal(8,2),--查询价格A
@PriceB decimal(8,2),--查询价格B
@PageNumber int,--页数
@CommoditiesPerPage int,
@StrSelectionValueId varchar(500),--商品筛选属性值Id
@orderAse int,-- 排序 销量 价格 评分 上架时间 @orderAse = 3 为降序(desc)
@HowManyCommodities int output
)
as
declare @Commodity table
(
RowNumber int,
CommodityId int,
CommodityName varChar(300),
MarketPrice decimal(8,2),
CommodityAddTime DateTime,
BrandId int,
SortId int,
CSelectionAttribute varchar(300),
SkuImg varchar(300),
SkuPrice decimal(8,2),
SkuQuanlity int
)
if @orderAse = 1
insert into @Commodity
select ROW_NUMBER() over(order by cc.commodityId),cc.CommodityId,CommodityName,MarketPrice,CommodityAddTime,BrandId,SortId,CSelectionAttribute,SkuImg, SkuPrice,SkuQuanlity from (Select distinct c.CommodityId,c.CommodityName,c.MarketPrice,c.CommodityAddTime,c.BrandId,c.SortId,c.CSelectionAttribute,s.SkuImg, s.SkuPrice,s.SkuQuanlity from Commodity c left join sku s on c.CommodityId = s.CommodityId ) as cc
where SortId = @SortId and 1 = (select dbo.isValite(BrandId,@BrandId))and 1= (select dbo.isExists(CSelectionAttribute,@StrSelectionValueId))and 1 = (select dbo.comparePrice(SkuPrice,@PriceA,@PriceB))

else if @orderAse = 2
insert into @Commodity
select ROW_NUMBER() over(order by cc.SkuPrice),cc.CommodityId,CommodityName,MarketPrice,CommodityAddTime,BrandId,SortId,CSelectionAttribute,SkuImg, SkuPrice,SkuQuanlity from (Select distinct c.CommodityId,c.CommodityName,c.MarketPrice,c.CommodityAddTime,c.BrandId,c.SortId,c.CSelectionAttribute,s.SkuImg, s.SkuPrice,s.SkuQuanlity from Commodity c left join sku s on c.CommodityId = s.CommodityId ) as cc
where SortId = @SortId and 1 = (select dbo.isValite(BrandId,@BrandId))and 1= (select dbo.isExists(CSelectionAttribute,@StrSelectionValueId))and 1 = (select dbo.comparePrice(SkuPrice,@PriceA,@PriceB))
else if @orderAse = 3
insert into @Commodity
select ROW_NUMBER() over(order by cc.SkuPrice desc),cc.CommodityId,CommodityName,MarketPrice,CommodityAddTime,BrandId,SortId,CSelectionAttribute,SkuImg, SkuPrice,SkuQuanlity from (Select distinct c.CommodityId,c.CommodityName,c.MarketPrice,c.CommodityAddTime,c.BrandId,c.SortId,c.CSelectionAttribute,s.SkuImg, s.SkuPrice,s.SkuQuanlity from Commodity c left join sku s on c.CommodityId = s.CommodityId ) as cc
where SortId = @SortId and 1 = (select dbo.isValite(BrandId,@BrandId))and 1= (select dbo.isExists(CSelectionAttribute,@StrSelectionValueId))and 1 = (select dbo.comparePrice(SkuPrice,@PriceA,@PriceB))

else if @orderAse = 4
insert into @Commodity
select ROW_NUMBER() over(order by cc.commodityId desc),cc.CommodityId,CommodityName,MarketPrice,CommodityAddTime,BrandId,SortId,CSelectionAttribute,SkuImg, SkuPrice,SkuQuanlity from (Select distinct c.CommodityId,c.CommodityName,c.MarketPrice,c.CommodityAddTime,c.BrandId,c.SortId,c.CSelectionAttribute,s.SkuImg, s.SkuPrice, s.SkuQuanlity from Commodity c left join sku s on c.CommodityId = s.CommodityId ) as cc
where SortId = @SortId and 1 = (select dbo.isValite(BrandId,@BrandId))and 1= (select dbo.isExists(CSelectionAttribute,@StrSelectionValueId))and 1 = (select dbo.comparePrice(SkuPrice,@PriceA,@PriceB))

else if @orderAse = 5
insert into @Commodity
select ROW_NUMBER() over(order by cc.CommodityAddTime desc),cc.CommodityId,CommodityName,MarketPrice,CommodityAddTime,BrandId,SortId,CSelectionAttribute,SkuImg, SkuPrice,SkuQuanlity from (Select distinct c.CommodityId,c.CommodityName,c.MarketPrice,c.CommodityAddTime,c.BrandId,c.SortId,c.CSelectionAttribute,s.SkuImg, s.SkuPrice ,s.SkuQuanlity from Commodity c left join sku s on c.CommodityId = s.CommodityId ) as cc
where SortId = @SortId and 1 = (select dbo.isValite(BrandId,@BrandId))and 1= (select dbo.isExists(CSelectionAttribute,@StrSelectionValueId))and 1 = (select dbo.comparePrice(SkuPrice,@PriceA,@PriceB))

select @HowManyCommodities = count(*) from @Commodity
select CommodityId,CommodityName,MarketPrice,CommodityAddTime,BrandId,SortId,CSelectionAttribute,SkuImg,SkuPrice,SkuQuanlity from @Commodity where RowNumber > (@PageNumber - 1) * @CommoditiesPerPage
and RowNumber <= @PageNumber * @CommoditiesPerPage
go

declare @HowManyCommodities real
exec GetExtractCommodityRefresh 19,0,0,1000,1,20,‘0‘,1,@HowManyCommodities output
select @HowManyCommodities
go

----通过商品筛选条件提取商品condition
create proc GetSelectionConditionCommodities
(
@SortId int,
@BrandId int,
@PriceA decimal(8,2),
@PriceB decimal(8,2),
@StrSelectionValueId varchar(500),--商品筛选属性值Id
@HowManyCommodities int output
)
as
declare @Commodity table
(
RowNumber int,
CommodityId int,
CommodityName varChar(300),
MarketPrice decimal(8,2),
CommodityAddTime DateTime,
BrandId int,
SortId int,
CSelectionAttribute varchar(300),
SkuImg varchar(300),
SkuPrice decimal(8,2),
SkuQuanlity int
)
insert into @Commodity
select ROW_NUMBER() over(order by cc.commodityId),cc.CommodityId,CommodityName,MarketPrice,CommodityAddTime,BrandId,SortId,CSelectionAttribute,SkuImg, SkuPrice,SkuQuanlity from (Select distinct c.CommodityId,c.CommodityName,c.MarketPrice,c.CommodityAddTime,c.BrandId,c.SortId,c.CSelectionAttribute,s.SkuImg, s.SkuPrice,s.SkuQuanlity from Commodity c left join sku s on c.CommodityId = s.CommodityId ) as cc
where SortId = @SortId and 1 = (select dbo.isValite(BrandId,@BrandId))and 1= (select dbo.isExists(CSelectionAttribute,@StrSelectionValueId))and 1 = (select dbo.comparePrice(SkuPrice,@PriceA,@PriceB))

select @HowManyCommodities = count(*) from @Commodity
select CommodityId,CommodityName,MarketPrice,CommodityAddTime,BrandId,SortId,CSelectionAttribute,SkuImg,SkuPrice,SkuQuanlity from @Commodity

go

declare @HowManyCommodities real
exec GetSelectionConditionCommodities 19,0,0,0,‘0‘,@HowManyCommodities output
select @HowManyCommodities
go

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