无法检索文件夹中的pdf文件的大小

Question

无法检索文件夹中pdf文件的大小，下面的代码返回表中的空列，我也想知道是否可以存储文件名和大小都在一张表中。

Create table #PDFFiles 

(
      PDFFile varchar(300) 
) 

Declare @param as varchar(100) 
Declare @Path as varchar(1000) 
Declare @PreparedBatch as Nvarchar(max); 

Set @PreparedBatch = 
      'DECLARE @pdf pdf 
      SELECT @pdf = CAST(BulkColumn AS pdf) 
      FROM OPENROWSET(BULK ''?'', SINGLE_BLOB) AS x 
      INSERT dbo.PDFDocument (PDFdoc) 
         SELECT @pdf;'; 
Set @Path = 'C:\dump\' 
Set @param = 'dir ' + @Path + '*.pdf /b' 

Insert into #PDFFiles 
Exec master..xp_cmdshell @param 
Update #PDFFiles Set PDFFile = @Path + PDFFile 


While Exists(select * from #PDFFiles where PDFFile is not null) 
Begin 
      Declare @CurrentFile Table (PDFFile varchar(300)); 

      Delete Top (1) from #PDFFiles 
      OUTPUT DELETED.PDFFile INTO @CurrentFile 
      Where PDFFile is not null 

      Declare @Batch as Varchar(max) 
      Select @Batch = Replace(@PreparedBatch,'?',PDFFile) from @CurrentFile  
      Exec (@Batch) 
      Delete from @CurrentFile 
End 

这是运行该代码时，我正在错误

Column, parameter, or variable #1: Cannot find data type pdf. 
Parameter or variable '@pdf' has an invalid data type. 

Answer 1

没有PDF数据类型：

DECLARE @pdf pdf

这应该是VARBINARY或FILESTREAM

Which data-type for storing images and documents in SQL Server 2005