我认为这会导致笛卡尔效应，但结果总是在返回的数据中返回两个相同的产品。
我如何强制选择明显的？我尝试修改最后的select语句以包含“Select Distinct Top ...”但它给了我一个关于语法的错误。很抱歉，如果这是一个简单的问题，我的SQL技能就不足了。
(
@ProductSKUs varchar(500),
@CategoryIDs varchar(40),
@RecordCount int
)
AS
BEGIN
declare @Products table (ProductSKU varchar(8), ProductID int not null, TrackInventoryBySizeAndColor int not null)
declare @TempCID table(CategoryID int not null default 0)
declare @CountCID int
set @CountCID=0
declare @productIDcount int
select @productIDcount = count(*) from dbo.Split(@ProductSKUs, ',')
declare @categoryIDcount int
select @categoryIDcount = @RecordCount - @productIDcount
-- product SKUs first
insert into @Products(ProductSKU, ProductID, TrackInventoryBySizeAndColor)
select p.SKU, p.ProductID, p.TrackInventoryBySizeAndColor
from dbo.Product p with (nolock)
join dbo.Split(@ProductSKUs, ',') pi on p.SKU = pi.items
-- now variant SKUs
insert into @Products(ProductSKU, ProductID, TrackInventoryBySizeAndColor)
select pv.SKUSuffix, pv.ProductID, ISNULL(pv.TrackInventoryBySizeAndColor, 0)
from dbo.ProductVariant pv with (nolock)
join dbo.Split(@ProductSKUs, ',') pi on pv.SKUSuffix = pi.items
--debug
--SELECT * FROM @Products
if @categoryIDcount > 0 begin
insert into @TempCID(CategoryID)
select c.CategoryID from Category c with(nolock) --get the subcats
join dbo.Split(@CategoryIDs, ',') ci on c.ParentCategoryID = cast(ci.items as int)
union
select c2.CategoryID from Category c2 with(nolock) --get the category itself
join dbo.Split(@CategoryIDs, ',') ci on c2.CategoryID = cast(ci.items as int)
insert into @TempCID(CategoryID)
select c.CategoryID from Category c with(nolock)
join @TempCID tc on c.ParentCategoryID = tc.CategoryID --get level 2 subcats
set @CountCID = @@ROWCOUNT
insert into @Products(ProductSKU, ProductID, TrackInventoryBySizeAndColor)
select TOP (@categoryIDcount) p.SKU, p.ProductID, p.TrackInventoryBySizeAndColor
from dbo.Product p with (nolock)
left join dbo.ProductCategory pc with (nolock) on p.ProductID = pc.ProductID
where pc.CategoryID in (select tc.CategoryID from @TempCID tc)
AND pc.ProductID Not in (SELECT ProductID FROM @Products)
ORDER BY CHECKSUM(NEWID())
end
--debug
--SELECT * FROM @Products
select top(@RecordCount)
p.ProductID,
p.Name,
pv.VariantID,
pv.Name as VariantName,
p.ProductGUID,
p.Summary,
p.Description,
p.SEKeywords,
p.SEDescription,
p.SpecTitle,
p.MiscText,
p.SwatchImageMap,
p.IsFeaturedTeaser,
p.FroogleDescription,
p.SETitle,
p.SENoScript,
p.SEAltText,
p.SizeOptionPrompt,
p.ColorOptionPrompt,
p.TextOptionPrompt,
p.ProductTypeID,
p.TaxClassID,
p.SKU,
p.ManufacturerPartNumber,
p.SalesPromptID,
p.SpecCall,
p.SpecsInline,
p.IsFeatured,
p.XmlPackage,
p.ColWidth,
p.Published,
p.RequiresRegistration,
p.Looks,
p.Notes,
p.QuantityDiscountID,
p.RelatedProducts,
p.UpsellProducts,
p.UpsellProductDiscountPercentage,
p.RelatedDocuments,
p.TrackInventoryBySizeAndColor,
p.TrackInventoryBySize,
p.TrackInventoryByColor,
p.IsAKit,
p.ShowInProductBrowser,
p.IsAPack,
p.PackSize,
p.ShowBuyButton,
p.RequiresProducts,
p.HidePriceUntilCart,
p.IsCalltoOrder,
p.ExcludeFromPriceFeeds,
p.RequiresTextOption,
p.TextOptionMaxLength,
p.SEName,
p.Deleted,
p.CreatedOn,
p.ImageFileNameOverride,
pv.VariantGUID,
pv.Description as VariantDescription,
pv.SEKeywords as VariantSEKeywords,
pv.SEDescription as VariantSEDescription,
pv.Colors,
pv.ColorSKUModifiers,
pv.Sizes,
pv.SizeSKUModifiers,
pv.FroogleDescription as VariantFroogleDescription,
pv.SKUSuffix,
pv.ManufacturerPartNumber as VariantManufacturerPartNumber,
pv.Price,
pv.CustomerEntersPrice,
pv.CustomerEntersPricePrompt,
isnull(pv.SalePrice, 0) SalePrice,
cast(isnull(pv.Weight,0) as decimal(10,1)) Weight,
pv.MSRP,
pv.Cost,
isnull(pv.Points,0) Points,
pv.Dimensions,
pv.DisplayOrder as VariantDisplayOrder,
pv.Notes as VariantNotes,
pv.IsTaxable,
pv.IsShipSeparately,
pv.FreeShipping,
pv.IsDownload,
pv.DownloadLocation,
pv.Published as VariantPublished,
pv.IsSecureAttachment,
pv.IsRecurring,
pv.RecurringInterval,
pv.RecurringIntervalType,
pv.SubscriptionInterval,
pv.SEName as VariantSEName,
pv.RestrictedQuantities,
pv.MinimumQuantity,
pv.Deleted as VariantDeleted,
pv.CreatedOn as VariantCreatedOn,
d.Name as DistributorName,
d.DistributorID,
d.SEName as DistributorSEName,
m.ManufacturerID,
m.Name as ManufacturerName,
m.SEName as ManufacturerSEName,
s.Name as SalesPromptName
from dbo.Product p with (nolock)
left join dbo.ProductVariant pv with (nolock) on p.ProductID = pv.ProductID
join @Products pid on p.SKU = pid.ProductSKU OR pv.SKUSuffix = pid.ProductSKU
left join dbo.SalesPrompt s with (nolock) on p.SalesPromptID = s.SalesPromptID
left join dbo.ProductManufacturer pm with (nolock) on p.ProductID = pm.ProductID
left join dbo.Manufacturer m with (nolock) on pm.ManufacturerID = m.ManufacturerID
left join dbo.ProductDistributor pd with (nolock) on p.ProductID = pd.ProductID
left join dbo.Distributor d with (nolock) on pd.DistributorID = d.DistributorID
where p.Deleted = 0
and p.Published = 1
ORDER BY p.ShowBuyButton desc
编辑：@RecordCount是最终select语句中要返回的记录数： 选择顶部（@RecordCount） - 将其传递给SPROC。