Question

我想知道该声明的错误。

INSERT INTO Table1(Myname,category ) 
 SELECT TOP 1 thenames
FROM tNames
 WHERE DateAdded > DATEADD(Day, -10, GETDATE() 
ORDER BY NEWID(),@ccategory)

我想从表tnames中选择一个随机值，并将其放在表1中，其中包含我从SP获得的类别值。我该怎么做？

编辑： 我在MS SQL Server工作。完整代码：

Create PROCEDURE [dbo].[Names_SP] 
@CCategory nvarchar(50)

AS

BEGIN
    INSERT INTO Table1(Myname,category ) 
     SELECT TOP 1 thenames
    FROM tNames
     WHERE DateAdded > DATEADD(Day, -10, GETDATE() 
    ORDER BY NEWID(),@ccategory)
END

当我拨打SP时，我发送@ccategory。由于表1有2列（第一列是类别），我想从tname表中获取第二个（myname）列值为random（已在10天内添加的名称）。

Answer 1

您要插入2列（Myname，类别）但您的选择列表只包含1列！（thenames）

＆＃34; @ category＆＃34 ;?至少在你发布的代码中，这个变量永远不会被声明或分配......

也许你应该这样做：

DECLARE  @category varchar(20)
SET @category = 'some cat.'    

INSERT INTO Table1(Myname,category)
    SELECT TOP 1 thenames,@category
    FROM tNames
    WHERE DateAdded > DATEADD(Day, -10, GETDATE())
    ORDER BY NEWID()

Answer 2

您正在从Select语句中选择One Column，并且在insert语句中指定了两列

INSERT INTO Table1(Myname) 
 SELECT TOP 1 thenames
FROM tNames
 WHERE DateAdded > DATEADD(Day, -10, GETDATE() 
ORDER BY NEWID(),@ccategory)

Answer 3

您必须选择以insert语句编写的确切值。这样的事情： -

INSERT INTO Table1(Myname,category ) 
SELECT TOP 1 thenames, Category_value
FROM tNames
WHERE DateAdded > DATEADD(Day, -10, GETDATE())
ORDER BY NEWID(),@ccategory

Answer 4

INSERT INTO Table1(Myname,category ) 
 SELECT TOP 1 thenames,@ccategory
FROM tNames
 WHERE DateAdded > DATEADD(Day, -10, GETDATE() ORDER BY NEWID(),@ccategory)

你应该传递相同的参数combinataion of insert和select statement

SQL Select In Select for insert Statement

4 个答案: