Question

有人能说出为什么这个查询不起作用吗？

DECLARE @unwantedRows TABLE 
( 
    ProductId INT, 
    ProductName VARCHAR(50),
    Description VARCHAR(50),
    Category VARCHAR(50),
    Repetitions VARCHAR(50)

);

Select *
INTO @unwantedRows From
(
Select a.*,Row_Number() Over(Partition By ProductId Order By ProductId)  As [Repetitons]  from tblProduct a
) As A

Where A.Repetitons > 1

我得到的错误是

`Msg 102，Level 15，State 1，Line 12 '@unwantedRows'附近的语法不正确。消息156，第15级，状态1，第15行关键字“As”附近的语法不正确。

修改：

现在它正在给Repetitions： -

INSERT
INTO @unwantedRows 
Select a.*,Row_Number() Over(Partition By ProductId Order By ProductId)  As [Repetitons]  from tblProduct a
Where a.Repetitons > 1

`

Invalid column name 'Repetitons'.

Answer 1

因为select into创建了一个表，并且您想要insert into @unwantedRows select * from ...

修改

然后，您不能在Where子句中使用窗口函数（例如Partition）。如果必须这样做，请将您的选择包装到另一个选择中：

select * from (select * from ...) as a where a.Partition > 1

Answer 2

我发现的一个错误是选择其选择..插入语句

以下查询正常工作没有错误，即语法错误

DECLARE @unwantedRows TABLE 
( 
    ProductId INT, 
    ProductName VARCHAR(50),
    Description VARCHAR(50),
    Category VARCHAR(50),
    Repetitions VARCHAR(50)

);

insert INTO @unwantedRows 
Select a.*,Row_Number() Over(Partition By ProductId Order By ProductId)  As [Repetitons]  from tblProduct 
Where A.Repetitons > 1

不受上述查询的影响，您也可以尝试这个

insert INTO @unwantedRows 
select * from (
Select a.*,Row_Number() Over(Partition By ProductId Order By ProductId)  As [Repetitons]  from tblProduct ) d
Where d.Repetitons > 1

Answer 3

您需要删除SELECT INTO，并且需要指定列。

INSERT @unwantedRows 
SELECT a.ProductID, a.ProductName, a.Description, a.Category, a.Repetitions
FROM (
    Select *, Row_Number() Over (Partition By ProductId Order By ProductId) As [Repetitons]  
    from tblProduct) As A
Where A.Repetitons > 1;

Answer 4

insert into @unwantedRows 
Select * from
(
Select a.*,Row_Number() Over(Partition By ProductId Order By ProductId)  As [Repetitons]  from tblProduct a
) As A
Where A.Repetitons > 1

为什么@Table不适合我？

4 个答案: