Convert varbinary back to .txt file

Question

I have a database (SQL 2008) where I store file's in. These are saved as a varbinary(max) type.

Now I need to get the .txt file again so I can loop through the contents of the file like i used to do with StreamReader.

while ((line = file.ReadLine()) != null)
{
string code = line.Substring(line.Length - 12);
}

But how can I convert the varbinary byte[] back to the normal .txt file so I'm able to go through the contents line by line.

I found some ideas with memorystream or filestream but can't get them to work.

Thanks in advance!

Answer 1

MemoryStream m = new MemoryStream(byteArrayFromDB);
StreamReader file = new StreamReader(m);
while ((line = file.ReadLine()) != null)
{
string code = line.Substring(line.Length - 12);
}

Answer 2

try this:

System.IO.File.WriteAllBytes("path to save your file", bytes);

Answer 3

cv is a varbinary(max) field

SqlCommand sqlCmd = new SqlCommand("SELECT cv FROM [job].[UserInfo] Where ID = 39 ", conn); 
SqlDataReader reader = sqlCmd.ExecuteReader(); 

if (reader.Read() != null)
{
    byte[] buffer = (byte[])reader["cv"];
    File.WriteAllBytes("c:\\cv1.txt", buffer);
}

Answer 4

    static void Main(string[] args)
    {
        GetData();
    }
    public static void GetData()
    {
        SqlConnection conn = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["main"].ConnectionString);
        conn.Open();
        string query = "SELECT FileStream FROM [EventOne] Where  ID=2";
        SqlCommand cmd = new SqlCommand(query, conn);

        DataTable dt = new DataTable();
        dt.Load(cmd.ExecuteReader());
        byte[] buffer = dt.AsEnumerable().Select(c => c.Field<byte[]>("FileStream")).SingleOrDefault();
        File.WriteAllBytes("c:\\FileStream.txt", buffer);
    }