What is image insert query for sql

protected void Button1_Click(object sender, EventArgs e)
    {
        //  'using System.IO' 
      
        FileStream fs = new FileStream("C:\\Files\\draft.jpg",FileMode.Open,FileAccess.Read);
        BinaryReader br = new BinaryReader(fs);
        byte[] photo = br.ReadBytes((int)fs.Length);

        br.Close();
        fs.Close();

        //  'using System.Data.SqlClient'
                     
        SqlConnection myConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["ContestConnection"].ConnectionString);

        SqlCommand addpic = new SqlCommand(  "INSERT INTO userTable ("+" img_data) "+" VALUES(@img)",myConnection);
            
        addpic.Parameters.Add("@img",SqlDbType.Image, photo.Length).Value = photo;
        
        myConnection.Open();
        
        addpic.ExecuteNonQuery();
        myConnection.Close();
         
        }

protected void btnUpload_Click(object sender, EventArgs e)

{

//Create a new filestream object based on the file chosen in the FileUpload control

FileStream fs = new FileStream(ImageUploadToSQL.PostedFile.FileName, FileMode.Open, FileAccess.Read);

//Create a binary reader object to read the binary contents of the file to upload

BinaryReader br = new BinaryReader(fs);

//dump the bytes read into a new byte variable named image

byte[] image = br.ReadBytes((int)fs.Length);

//close the binary reader

br.Close();

//close the filestream

fs.Close();

//Now that we've read the chosen file into a byte variable we can work with,

//stick the contents of that variable into the SQL Server database

//Create a SQL Server connection variable

SqlConnection myConnection = new SqlConnection(ConfigurationManager.ConnectionStrings["BlobsConnectionString"].ConnectionString);

//Create a SQL Server command variable

SqlCommand addimage = new SqlCommand("INSERT INTO Images (" + " Image, ImageName)" + " VALUES(@Image, @ImageName)", myConnection);

//Assign our image variable and filename variable to the parameters of the SQL Command

addimage.Parameters.Add("@Image", SqlDbType.Image, image.Length).Value = image;

addimage.Parameters.Add("@ImageName", SqlDbType.NVarChar).Value = txtFileName.Text;

//open the SQL connection and run the command to insert image and image name to the database

myConnection.Open();

addimage.ExecuteNonQuery();

myConnection.Close();

}