存储过程检查参数是否为空-StoredProcedureCheckifParameterisNULL

I am new to stored procedures, so I really need some help here. I am trying to modify a sp to show all records if the parameter is null, and if it is not null, there is another query for it to run. What I have is getting the error Procedure of function expects parameter @marketid which was not supplied. Can someone please help me resolve this issue?

我对存储过程不熟悉，所以这里需要一些帮助。我正在尝试修改一个sp来显示所有的记录，如果参数是null，如果它不是null，就会有另一个查询来运行。我得到的是函数的错误过程是参数@marketid，它没有被提供。有人能帮我解决这个问题吗?

ALTER  procedure [dbo].[sp_GetProductDetailsForMarket]
@marketid int

as

IF @marketid IS NOT NULL
begin
SELECT 
p.ProductID, p.pagenumber,p.ProductName,p.Description,p.CategoryID,
   p.ItemNumber,p.Price,p.AlertFrequency,p.PrimaryImageName,
   p.DeletionStateCode,p.Published,p.SearchTerms,p.ThumbNailPath,
   p.UOMName,p.HCPCCode,
   m.marketname,mm.MarketID,
   pa.AttributeID,pa.AttributeValueID,pa.Price as AttributePrice,
   pa.ImagePath,pa.ProductAttributeAssociationID,pa.IsOptional,
   av.[Name] as AttributeValueName,a.[Name] as AttributeName

FROM vPanel_Product p 
INNER JOIN vPanel_MarketMappings mm
        on p.productid=mm.productid
LEFT JOIN vPanel_Market m
        on m.marketid=mm.marketid
LEFT JOIN vPanel_ProductAttributeAssociation pa
       on p.productid = pa.productid
        and pa.deletiOnstatecode=0
LEFT JOIN vPanel_Attributes a
        on a.AttributeID = pa.AttributeID
        and a.deletiOnstatecode=0
LEFT JOIN vPanel_AttributeValues av
        on av.attributeValueID = pa.attributeValueID
        and av.deletiOnstatecode=0
WHERE m.marketid = @marketid
order by p.productname,A.ATTRIBUTEID,AV.ATTRIBUTEVALUEID
end

ELSE 

begin
SELECT 
p.ProductID, p.pagenumber,p.ProductName,p.Description,p.CategoryID,
   p.ItemNumber,p.Price,p.AlertFrequency,p.PrimaryImageName,
   p.DeletionStateCode,p.Published,p.SearchTerms,p.ThumbNailPath,
   p.UOMName,p.HCPCCode,
   pa.AttributeID,pa.AttributeValueID,pa.Price as AttributePrice,
   pa.ImagePath,pa.ProductAttributeAssociationID,pa.IsOptional,
   av.[Name] as AttributeValueName,a.[Name] as AttributeName

FROM vPanel_Product p 
LEFT JOIN vPanel_ProductAttributeAssociation pa
       on p.productid = pa.productid
        and pa.deletiOnstatecode=0
LEFT JOIN vPanel_Attributes a
        on a.AttributeID = pa.AttributeID
        and a.deletiOnstatecode=0
LEFT JOIN vPanel_AttributeValues av
        on av.attributeValueID = pa.attributeValueID
        and av.deletiOnstatecode=0
WHERE @marketid IS NULL
ORDER BY p.productname,A.ATTRIBUTEID,AV.ATTRIBUTEVALUEID
end

2 个解决方案

ALTER  procedure [dbo].[sp_GetProductDetailsForMarket]
@marketid int = NULL

exec sp_GetProductDetailsForMarket

ALTER  procedure [dbo].[sp_GetProductDetailsForMarket]
@marketid int = NULL