Question

我试图执行sql SP，然后添加＆＃34;选择＆＃34;到查询。它工作正常，但如果我在＆＃34;之间添加＆＃34;我收到了错误。

这是代码：

DECLARE @query as nvarchar(200);
    SET @query = N'select *
                    from (    
                    select *,totalRecords = COUNT(*) OVER(),ROW_NUMBER() OVER ( ORDER BY date desc) AS RowNum
                        from  #data
                    ) as RowConstrainedResult
                    where RowNum  between 1 and 20
                    ORDER BY RowNum';

    EXEC sp_executesql @query

这是错误：

 Incorrect syntax near '1'.

Answer 1

变量声明问题

DECLARE @query as nvarchar(200);
                           ^^^

由于您的变量包含不适用于此变量的多行sql语句，请尝试对此多行sql语句使用MAX大小变量

DECLARE @query as nvarchar(MAX);

Answer 2

试试这个：

DECLARE @query as nvarchar(200);
SET @query = 'select * from (select *,totalRecords = COUNT(*) OVER(),ROW_NUMBER() OVER ( ORDER BY date desc) AS RowNum from  #data) as RowConstrainedResult where RowNum between 1 and 20 ORDER BY RowNum';

  select @query              

EXEC sp_executesql @query

Answer 3

我认为问题出在DECLARE @query as nvarchar(200);

将其更改为DECLARE @query as nvarchar(MAX);

您应该PRINT @query在执行

之前检查您的查询

Answer 4

您已声明@query as nvarchar(200)且查询长度超过200，因此只需将@query as nvarchar(200)更改为@query as nvarchar(2000)，它就可以正常使用。

如果以字符串形式出现，则SQL查询无效

4 个答案: