The Art of SQL Server FILESTREAM - Red Gate Software

Chapter 6: FILESTREAM with SSIS and SSRSIn this lab, the FILESTREAM file must be opened for reading, and the disk file needs to becreated and opened for writing.The data stored in the table contains the full path and file name, for example:c:\filestream\images\abc.jpeg. We created a package variable earlier to store the locationin which the image files need to be created, so we now need to build a new path basedon the file path stored in the table and the target folder location stored in the packagevariable. Listing 6-20 shows how to do this.// Open the FILESTREAM data file for readingSqlFileStream fs = new SqlFileStream(FSPathName, FSContext,FileAccess.Read);// Open the disk file for writingstring OnlyFilename = System.IO.Path.GetFileName(FileName);FileStream localFile = new FileStream(OutputFolder + OnlyFilename,FileMode.Create, FileAccess.Write);// Note that the BinaryWriter should be initialized with the// localFile objectBinaryWriter bw = new BinaryWriter(localFile);Listing 6-20:Building a path to the target location.When you have completed the changes, execute the SSIS package and verify that theFILESTREAM data is correctly exported to the target location specified in the package.The complete listings for the C# and VB source code to export BLOB valuesfrom a FILESTREAM column into disk files in the specified location are availablein the download.259