The Art of SQL Server FILESTREAM - Red Gate Software

Chapter 6: FILESTREAM with SSIS and SSRSThe stored procedure will return the three critical pieces of information that we needed.The code in Listing 6-14 reads these values and assigns them to the local variables wecreated earlier.reader.Read()FSContext = (reader["FSContext"] as byte[]);FSPathName = reader["FSPath"].ToString();FileName = reader["ImageFileName"].ToString();reader.Close();Listing 6-14:Reading the values returned by the stored procedure.Listing 6-15 opens the FILESTREAM data file for writing, and the image file for reading. Itthen reads from the disk file and writes into the FILESTREAM column.// Open the FILESTREAM data file for writingSqlFileStream fs = new SqlFileStream(FSPathName, FSContext,FileAccess.Write);// Open the disk file for readingFileStream localFile = new FileStream(FileName,FileMode.Open, FileAccess.Read);// Start transfering data from disk file to FILESTREAM data fileBinaryWriter bw = new BinaryWriter(fs);const int bufferSize = 4096;byte[] buffer = new byte[bufferSize];int bytes = localFile.Read(buffer, 0, bufferSize);while (bytes > 0){bw.Write(buffer, 0, bytes);bw.Flush();bytes = localFile.Read(buffer, 0, bufferSize);}Listing 6-15:Reading from the disk file and writing to the FILESTREAM column.252