You can use this model for any type of file like JPG,PDF,ZIP and etc.We have years of experience working with the glTF format in our 3D solutions. SELECT convert (VARBINARY (max), PictureData, 1)ĮXEC sp_OAMethod sp_OAMethod NULL, sp_OAMethod NULL, 2 If we have table Pictures column and need convert this binary to file use below SP : Create PROCEDURE. I can describe this model by one example. You can use stored procedure in sql-server like below : MaxBinaryLength 1000000000 | Out-File -FilePath 'someFile.pdf' Something like this (haven't tested it) : Invoke-Sqlcmd -Query 'SELECT binaryField from someTable' -ServerInstance '.' By default Invoke-SqlCmd truncates long columns, so you need to use the -MaxBinaryLength parameter. If you can't connect remotely, you can start a Powershell session from SSMS and use Invoke-SqlCmd to execute a query. Using (Stream data = reader.GetStream(0))ĮxecuteReaderAsync must be called with SequentialAccess, to avoid caching the entire file in memory. Using (FileStream file = new FileStream(filePath, FileMode.Create, FileAccess.Write)) Using (SqlDataReader reader = await command.ExecuteReaderAsync( 'SELECT FROM WHERE connection))Ĭ('id', SqlDbType.Int64).Value=1 Using (SqlCommand command = new SqlCommand( Copying from the docs : using (SqlConnection connection = new SqlConnection(connectionString)) You can read binary data from a query's results through SqlDataReader.GetBytes or as a stream.

0x255044462D312E37 is how your client tool, eg SSMS or Azure Data Studio display the binary data. My question is: why can't I convert the hexadecimal string myself? And copying this base and the writing it to disc works just fine like this: string b64 = 'JVBERi0xLjcKJeLjz9M' When it does this, it will convert the varbinary column to base64. However, I also have an API that is connected to this Database and that serializes and deserialize responses using Newtonsoft. However I cannot open this file with Adobe, it says the file is damaged. Public static byte StringToByteArray(String hex)īyte bytes = new byte īytes = Convert.ToByte(hex.Substring(i, 2), 16)

So I copied this data and tried writing it to file like this with C#: string hexString = '255044462D312E37'īyte file = StringToByteArray(hexString) When I query for this data with SSMS, the column looks like this in what I understand is hexadecimal: 0x255044462D312E37 I have a SQL Server table that contains a varbinary(max) column.

Converting a bin file to obj