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Sql Server SQL語句連表時(shí)出現(xiàn)重復(fù)數(shù)據(jù)?如何解決?求高手指教

Sql Server SQL語句連表時(shí)出現(xiàn)重復(fù)數(shù)據(jù)?如何解決?求高手指教

明月笑刀無情 2018-12-06 12:30:50
select convert(varchar(20),po.[PurchasedOn],111) as PurchasedOn,cu.[CustomerCode],po.CustomerOrderNo,po.[OutTradeSN], convert(varchar(20),co.[CreatedOn],111) as CreatedOn,shop.[ShopName],cate.[CategoryName],poi.PurchaseQuantity,(poi.PurchaseQuantity*poi.PurchasePrice) as PaymentForGoods,po.[Cn2CnFreightAmount], ((poi.PurchaseQuantity*poi.PurchasePrice)+po.[Cn2CnFreightAmount]) as TotalMoney,po.OutPaySN,po.[PurchaseByName],ca.[CompanyAlias],eo.[ExpressNo] from [Erp].[trade].[PurchaseOrders] po inner join [trade].[CustomerOrders] co on po.[CustomerOrderNo] = co.[OrderNo] inner join [CRM].[Customers] cu on cu.[CustomerId]=co.[CustomerId] inner join [trade].[PurchaseItems] poi on poi.[PurchaseOrderId]=po.PurchaseOrderId inner join [goods].[Shops] shop on shop.[ShopId] = po.[ShopId] inner join [goods].[Goods] good on good.[GoodsId] = poi.[GoodId] inner join [goods].[Categories] cate on cate.[CategoryId] = good.[CategoryId] inner join [trade].[ExpressOrders2PurchaseItems] eopi on eopi.[PurchaseItemId] = poi.[PurchaseItemId] inner join [trade].[ExpressOrders] eo on eo.[ExpressOrderId] = eopi.[ExpressOrderId] inner join [basic].[CompanyAlias] ca on ca.CompanyId = eo.ExpressCompanyId where month(po.[PurchasedOn])=month(getdate()) and year(po.[PurchasedOn])=year(getdate()) order by po.[PurchasedOn] asc
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動(dòng)漫人物

TA貢獻(xiàn)1815條經(jīng)驗(yàn) 獲得超10個(gè)贊

去掉重復(fù)行 select distinct sno from sc

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?
森欄

TA貢獻(xiàn)1810條經(jīng)驗(yàn) 獲得超5個(gè)贊

一次性的查了這么多個(gè)數(shù)據(jù)庫(kù)里的這么多表。。。如果出現(xiàn)重復(fù)數(shù)據(jù)可以用distinct,grounp by等關(guān)鍵字試試。

先找到那條重復(fù)的記錄中對(duì)應(yīng)的字段有可能出現(xiàn)在那張表中兩次,這對(duì)這個(gè)字段,你應(yīng)該distinct一下,我也大致猜想也想,

呵呵,,,

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反對(duì) 回復(fù) 2019-01-07
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嗶嗶one

TA貢獻(xiàn)1854條經(jīng)驗(yàn) 獲得超8個(gè)贊

distinct這個(gè)關(guān)鍵字應(yīng)該怎么用?

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