Fetch a binary data from database

Question

I've a list of hexadecimal value with a data type varbinary in the database. But when I run a query, nothing shown as a result.

 

The example of the hexadecimal value in the database:

 

0x10160000, 0x1016FFFF

0x10170000, 0x1017FFFF

 

This is my current code

//this string SNE will get the data from the text file string
SNE = data["End_Rg"];
query = "SELECT Start_Range, End_Range, Status FROM Range WHERE End_Range = '" + SNE + "' ";
sqlcmd = new SqlCommand(query, cnn);
readData = sqlcmd.ExecuteReader();
readData.Read();
Console.WriteLine("Start Range: {0}", readData["Start_Range"]);
Console.WriteLine("End Range: {0}", readData["End_Range"]);
Console.WriteLine("Status: {0}", readData["Status"]);

Currently, I'm getting an error:

 

> System.InvalidOperationException: 'Invalid attempt to read when no data is present.'

 

Can I know what is the best way to fetch the binary data from the database?