删除视图中的重复行（SQL Server 2014 management studio）

我有2个表item和memo。在item,itemId是PK和itid是FK。在memo的memID是PK。删除视图中的重复行（SQL Server 2014 management studio）

我创建了一个观点：

SELECT  
    dbo.memo.memID, dbo.memo.fullname, dbo.memo.company, 
    dbo.memo.department, dbo.memo.MRnum, dbo.memo.date, 
    dbo.memo.returndate, dbo.memo.remarks, 
    dbo.memo.issuedby, dbo.memo.picture, dbo.item.itemID AS Expr1, 
    dbo.item.Itemnumber, dbo.item.description, dbo.item.qty,  
    dbo.item.unitofmeasure, dbo.item.itid 
FROM   
    dbo.memo 
INNER JOIN 
    dbo.item ON dbo.memo.memID = dbo.item.itid 
WHERE 
    (dbo.memo.department = N'tsd')

和输出是这

this is the output

我只想全名，公司，部门，MRnum，日期，备注1个输出，issuedby每多行项目

enter image description here

希望你明白。谢谢

来源

2016-04-05 mhitzsuiko

SELECT DISTINCT ...但内蒙古重复通常JOIN意味着你的数据不是归 – Mihai

你能告诉我们您预期的输出？听起来你只想在一行上显示全名，公司等，并为剩余行删除 – Squirrel

@Squirrel，项目中有多个数据绑定到备忘录，我想输出是这样的，1个名字有多个项目。 – mhitzsuiko

您可以在查询中使用DISTINCT。

见下

SELECT DISTINCT  dbo.memo.memID, dbo.memo.fullname, dbo.memo.company, dbo.memo.department, dbo.memo.MRnum, dbo.memo.date, dbo.memo.returndate, dbo.memo.remarks, dbo.memo.issuedby, dbo.memo.picture, dbo.item.itemID AS Expr1, dbo.item.Itemnumber, dbo.item.description, dbo.item.qty, dbo.item.unitofmeasure,      dbo.item.itid 
FROM dbo.memo 
    INNER JOIN dbo.item ON dbo.memo.memID = dbo.item.itid 
WHERE  (dbo.memo.department = N'tsd')

来源

2016-04-05 06:15:37

我只是想，在全名，公司，部门，MRnum，日期，备注，issuedby与项目的多行

你可以1个输出请执行此操作，在所需列上使用group by并采取top 1

SELECT TOP 1 
     dbo.memo.fullname , 
     dbo.memo.company , 
     dbo.memo.department , 
     dbo.memo.MRnum , 
     dbo.memo.date , 
     dbo.memo.remarks , 
     dbo.memo.issuedby 
FROM dbo.memo 
INNER JOIN dbo.item 
     ON dbo.memo.memID = dbo.item.itid 
WHERE (dbo.memo.department = N'tsd') 
GROUP BY dbo.memo.fullname , 
     dbo.memo.company , 
     dbo.memo.department , 
     dbo.memo.MRnum , 
     dbo.memo.date , 
     dbo.memo.remarks , 
     dbo.memo.issuedby

来源

2016-04-05 06:18:57

如果您是某些您也可以使用TOP，如下所示，您将获得所有重复记录。

SELECT TOP 1 dbo.memo.memID, dbo.memo.fullname, dbo.memo.company, dbo.memo.department, dbo.memo.MRnum, dbo.memo.date, dbo.memo.returndate, dbo.memo.remarks, dbo.memo.issuedby, dbo.memo.picture, dbo.item.itemID AS Expr1, dbo.item.Itemnumber, dbo.item.description, dbo.item.qty, dbo.item.unitofmeasure,      dbo.item.itid 
FROM dbo.memo 
    INNER JOIN dbo.item ON dbo.memo.memID = dbo.item.itid 
WHERE  (dbo.memo.department = N'tsd')

来源

2016-04-05 06:20:13 Irshad

我想输出是这样的，'全名'，'公司'，'部门'，'MRnum'，'日期'，多个'itemnumber'，'描述'，数量'，单位'，' – mhitzsuiko

删除视图中的重复行（SQL Server 2014 management studio）

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